Modern Periodic Table Pdf


What is the modern version of the periodic table?

The modern periodic table lists the elements in order of increasing atomic number (the number of protons in the nucleus of an atom). Historically, however, relative atomic masses were used by scientists trying to organise the elements.

How many elements are there in periodic table PDF download?

Periodic Table without Names – This chart features the element symbols, atomic numbers, and atomic weights, but does not list the element names. You can use it to help learn to associate the names and symbols, like for quizzes and such. The color version of the table includes the element groups and a key, while the black and white version omits the groups, so you can learn those or color them in.

What are the 10 elements of the modern periodic table?

Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, and Neon are the first 10 elements of the periodic table. Among them, only Lithium and Beryllium are metals rest are non-metals.

Who form the modern periodic table?

The periodic table was first created by the Russian chemist Dmitri Mendeleev in 1869. The English Chemist Henry Moseley presented a revised form of the periodic table, which is known as ‘The Modern Periodic table’ in 1913

How many types of modern periodic table are there?

Classifications Of Elements in the Periodic Table – The elements of groups 1, 2, 13, 14, 15, 16, and 17 are known as the main group elements or normal elements. The elements of groups 3, 4, 5, 6, 7, 8, 9, 11 and 12 are known as the, Group 18 is called noble gases or inert gases,

  1. Their outermost shell is completely filled.
  2. Due to this stable electronic configuration, they generally don’t react with the other elements.
  3. When we talk about the periods of a modern periodic table, one should keep in mind that the number of shells present in an atom determines its period number.
  4. The elements of period one will have only one shell, elements of period two will have two shells and so on.

The first period of the modern is the shortest period as it contains only two elements. The period number two and three consist of eight elements each and are known as short groups. Period four and five have eighteen elements and are known as the long group.

In the modern periodic table, group number 3 of period six contains the lanthanide series which are the rare earth elements. We have radioactive elements (actinides) present in group 3 of period seven. So we have seen the properties of the modern periodic table. To learn more about the periodic table and other concepts of chemistry, register with BYJU’S.

In the modern periodic table of elements, the following fall under group 15:

Nitrogen (N) Phosphorus (P) Arsenic (As) Antimony (Sb) Bismuth (Bi)

These elements are collectively referred to as the pnictogens (or the nitrogen family). In the modern periodic table, the electronegativity of elements increases across a period (row) and decreases down a group (column). Therefore, the bottom-left most element (francium) is predicted to have the lowest electronegativity and the top-right most element (fluorine) is predicted to have the highest electronegativity.

  • The noble gases are not considered since they are relatively inert).
  • The modern periodic table of elements can be broken down into 4 blocks – the s-block, the p-block, the d-block, and the f-block.
  • This classification is based on the types of orbitals that contain the valence electrons of the element.

For example, s-block elements have valence electrons in s-orbitals and d-block elements have their valence electrons in d-orbitals. The f-block elements are the elements of the modern periodic table whose valence electrons lie in f-orbitals. These elements can be broadly classified into two categories.

The lanthanides – elements whose valence electrons lie in the 4f orbital. The actinides – elements whose valence electrons lie in the 5f orbital.

The atomic/ionic radii of elements increase while traversing down a group in the modern periodic table due to the addition of new electron shells. The atomic radii of the elements generally decrease across periods due to the increase in electronegativity and the increase in the effective nuclear charge acting on the outermost shells. Put your understanding of this concept to test by answering a few MCQs. Click ‘Start Quiz’ to begin! Select the correct answer and click on the “Finish” buttonCheck your score and answers at the end of the quiz Visit BYJU’S for all Chemistry related queries and study materials

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View Quiz Answers and Analysis : Modern Periodic Table of Elements -Law,Features, Classification of Elements, FAQs and Video of Modern Periodic Table.

Do I need to memorize the periodic table?

Finding patterns and origin –

Keep in mind the Latin names – The Latin names are difficult to keep in mind and thus can be made as milestones that you would remember at any point in time. Keep in mind the difference between the names You can use flashcards to memorize the periodic table.

Memorizing the periodic table is important because it is organized and gives a lot of information about elements. Also, it makes students understand how elements relate to one another.

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It is used to predict the properties of every element. Groups and periods give information about the elements sharing similar characteristics. The periodic table provides significant information which can be used in,

These were some tricks and tips that can be used to remember and understand the Periodic table. To learn more about the Periodic Table and the various elements in it visit us at or download our BYJU’S – The Learning App.

Are there only 103 elements?

Nomenclature of Elements with Atomic Number above 100 There are around 118 elements in the modern,Out of 118 elements that have been discovered by scientists, 24 are synthetically developed by mankind and the rest are naturally occurring elements. Few of the elements from the 24 man-made elements were discovered much before and few others were discovered recently by a team that was headed by Glen Seaborg at the Lawrence Berkeley Laboratory in Berkeley, California.

  1. The names and the symbols that are given to these elements are still not used universally.
  2. Some of them even had two names and symbols.
  3. For example, the element with the atomic number 104 was discovered by America as well as the Soviet Union.
  4. The American Scientist gave it the name Rutherfordium (Rf) whereas the name Kurchatovium (Ku) was established by scientists of the Soviet Union.

In a similar manner, another element with the atomic number 107 is named Neilsbohrium (Ns) as well as Bohrium (Bh). Thus a committee named commission on nomenclature of inorganic chemistry (CNIC) was issued by the IUPAC so that a particular IUPAC naming process should be assigned for the elements whose atomic number is greater than or equal to 100.

  • In the year 1997, after an elaborate discussion with all the scientists around the world, IUPAC decided on the official names for elements with atomic numbers 104 to 110 and proposed a method for naming the elements.
  • In this article, you will get to know about the nomenclature of the elements above 100 and their IUPAC names as well.

Generally, the discoverer of the element is given the honour to name the element discovered. The name of the chemical element comes from the physical or chemical properties, its origin, or mythical characters. The recommended name of an element is then consented to by the IUPAC (International Union of Pure and Applied Chemistry).

What are the 20 main elements?

First Elements of the Periodic Table The first 20 Elements of the Periodic Table: Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Sodium, Magnesium, Aluminium, Silicon, Phosphorus, Sulphur, Chlorine, Argon, Potassium, Calcium.The symbol for sodium is “Na”. Some mnemonics refer to the symbol “Na” instead of sodium.

Mnemonic: Mnemonic: Mnemonic: Mnemonic: Mnemonic:

Harry He Likes Beer Bottle Cold, Not Over Frothy. Nelly’s Nanny Might, Although Silly Person, She Climbs Around Kinky Caves;He Has Light Brain But Can Not Offer Full Nine Subjects, May All Senior Professional Scientists Come And Protect ChemistryHe Has Large Brain But Can Not Offer Full Nine Subjects, Master Art Students Prefer Simple Colours And Pretty Colours”H.HeLi, B.BCNOF and NeNa MgAl SiPS ClArKCa””Hi Helen, Listen B.B.C.

Why is it called periodic table?

What is the periodic table? – Media caption, Chemistry teacher Kristy explains what the periodic table is. Elements are the building blocks for everything in the world. Depending on the temperature they can be a solid, liquid or gas. Most occur naturally such as oxygen, gold, copper, carbon and helium.

The periodic table is a way of arranging all of these chemical elements and putting similar ones together. Image source, Getty Images Each square on the table includes a number and letters. The letters are the chemical name for the element, for example Oxygen is O but gold is actually Au. The number is an atomic number.

Atoms are the smallest particle of a chemical element that can exist. There are currently 118 known elements but only 94 of these are thought to naturally exist on Earth. If you cannot see the interactive activity on this page, click here. It is called the periodic table because of the way the elements are arranged.

You’ll notice they’re in rows and columns. The horizontal rows (which go from left to right) are called ‘periods’ and the vertical columns (going from up to down) are called ‘groups’. Super science discoveries In 1869 a Russian scientist called Dmitri Mendeleev invented the periodic system that we still use today.

Before him others had tried to ‘order’ the elements but their tables were incomplete or grouped elements together which weren’t similar. Dmitri’s table didn’t include all of the elements because not all of them were known at the time. He left gaps for them though and could predict their properties based on the elements around them in his table.

  1. Image source, SSPL/Print Collector Image caption, Dmitri Mendeleev invented the periodic table in 1869.
  2. Everything – including humans! – are made up of elements so it’s really important to understand them.
  3. When Dmitri’s table was first created it helped scientists to do that, and it still does today.
  4. The periodic table also means scientists can predict the properties of matter on Earth – and in the rest of the Universe.

It’s been described as “one of the most significant achievements in science” by the United Nations which has decided that 2019 is the international year of the periodic table of chemical elements! Image source, Getty Images

How is the modern periodic table arranged?

Video \(\PageIndex \) : A brief introduction to the genius of Mendeleev. As early chemists worked to purify ores and discovered more elements, they realized that various elements could be grouped together by their similar chemical behaviors. One such grouping includes lithium (Li), sodium (Na), and potassium (K): These elements all are shiny, conduct heat and electricity well, and have similar chemical properties.

  1. A second grouping includes calcium (Ca), strontium (Sr), and barium (Ba), which also are shiny, good conductors of heat and electricity, and have chemical properties in common.
  2. However, the specific properties of these two groupings are notably different from each other.
  3. For example: Li, Na, and K are much more reactive than are Ca, Sr, and Ba; Li, Na, and K form compounds with oxygen in a ratio of two of their atoms to one oxygen atom, whereas Ca, Sr, and Ba form compounds with one of their atoms to one oxygen atom.
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Fluorine (F), chlorine (Cl), bromine (Br), and iodine (I) also exhibit similar properties to each other, but these properties are drastically different from those of any of the elements above. Dimitri Mendeleev in Russia (1869) and Lothar Meyer in Germany (1870) independently recognized that there was a periodic relationship among the properties of the elements known at that time.

Both published tables with the elements arranged according to increasing atomic mass. But Mendeleev went one step further than Meyer: He used his table to predict the existence of elements that would have the properties similar to aluminum and silicon, but were yet unknown. The discoveries of gallium (1875) and germanium (1886) provided great support for Mendeleev’s work.

Although Mendeleev and Meyer had a long dispute over priority, Mendeleev’s contributions to the development of the periodic table are now more widely recognized (Figure \(\PageIndex \)). Modern Periodic Table Pdf Figure \(\PageIndex \) : (a) Dimitri Mendeleev is widely credited with creating (b) the first periodic table of the elements. (credit a: modification of work by Serge Lachinov; credit b: modification of work by “Den fjättrade ankan”/Wikimedia Commons) Video \(\PageIndex \) : An introduction to the organization of the periodic table into periods and groups.

This organization will be important as we continue building on the principles of chemistry. By the twentieth century, it became apparent that the periodic relationship involved atomic numbers rather than atomic masses. The modern statement of this relationship, the periodic law, is as follows: the properties of the elements are periodic functions of their atomic numbers,

A modern periodic table arranges the elements in increasing order of their atomic numbers and groups atoms with similar properties in the same vertical column (Figure \(\PageIndex \)). Each box represents an element and contains its atomic number, symbol, average atomic mass, and (sometimes) name.

  1. The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups,
  2. Groups are labeled at the top of each column.
  3. In the United States, the labels traditionally were numerals with capital letters.
  4. However, IUPAC recommends that the numbers 1 through 18 be used, and these labels are more common.

For the table to fit on a single page, parts of two of the rows, a total of 14 columns, are usually written below the main body of the table. Modern Periodic Table Pdf Figure \(\PageIndex \) : Elements in the periodic table are organized according to their properties. Many elements differ dramatically in their chemical and physical properties, but some elements are similar in their behaviors. For example, many elements appear shiny, are malleable (able to be deformed without breaking) and ductile (can be drawn into wires), and conduct heat and electricity well.

Other elements are not shiny, malleable, or ductile, and are poor conductors of heat and electricity. We can sort the elements into large classes with common properties: metals (elements that are shiny, malleable, good conductors of heat and electricity—shaded yellow); nonmetals (elements that appear dull, poor conductors of heat and electricity—shaded green); and metalloids (elements that conduct heat and electricity moderately well, and possess some properties of metals and some properties of nonmetals—shaded purple).

The elements can also be classified into the main-group elements (or representative elements ) in the columns labeled 1, 2, and 13–18; the transition metals in the columns labeled 3–12; and inner transition metals in the two rows at the bottom of the table (the top-row elements are called lanthanides and the bottom-row elements are actinides ; Figure \(\PageIndex \)).

The elements can be subdivided further by more specific properties, such as the composition of the compounds they form. For example, the elements in group 1 (the first column) form compounds that consist of one atom of the element and one atom of hydrogen. These elements (except hydrogen) are known as alkali metals, and they all have similar chemical properties.

The elements in group 2 (the second column) form compounds consisting of one atom of the element and two atoms of hydrogen: These are called alkaline earth metals, with similar properties among members of that group. Other groups with specific names are the pnictogens (group 15), chalcogens (group 16), halogens (group 17), and the noble gases (group 18, also known as inert gases ). Modern Periodic Table Pdf Figure \(\PageIndex \): The periodic table organizes elements with similar properties into groups. Example \(\PageIndex \): Naming Groups of Elements Atoms of each of the following elements are essential for life. Give the group name for the following elements:

  1. chlorine
  2. calcium
  3. sodium
  4. sulfur

Solution The family names are as follows:

  1. halogen
  2. alkaline earth metal
  3. alkali metal
  4. chalcogen

Exercise \(\PageIndex \) Give the group name for each of the following elements:

  1. krypton
  2. selenium
  3. barium
  4. lithium

Answer a noble gas Answer b chalcogen Answer c alkaline earth metal Answer d alkali metal In studying the periodic table, you might have noticed something about the atomic masses of some of the elements. Element 43 (technetium), element 61 (promethium), and most of the elements with atomic number 84 (polonium) and higher have their atomic mass given in square brackets.

This is done for elements that consist entirely of unstable, radioactive isotopes (you will learn more about radioactivity in the nuclear chemistry chapter). An average atomic weight cannot be determined for these elements because their radioisotopes may vary significantly in relative abundance, depending on the source, or may not even exist in nature.

The number in square brackets is the atomic mass number (and approximate atomic mass) of the most stable isotope of that element.

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What are the limitations of the modern periodic table?

​ No place for isotopes of elements in the Modern periodic table. Lanthanides and Actinides are kept separately under the table not kept within the Modern periodic table. The modern periodic table could not explain the cause of periodicity, or separation of similar elements.

What are the important points of the modern periodic table?

Main features: –

  • Groups – There are 18 vertical columns in the periodic table. Each column is called a group. All elements in a group have similar chemical and physical properties because they have the same number of outer electrons.
  • Periods – In periodic table elements are arranged in a series of rows, Elements of the same period have the same number of electron shells.

What are the advantages of the modern periodic table?

Therefore, the two advantages of the modern periodic table are- that the table is based on atomic numbers, and the position of the elements is more clear with their electronic configuration.

What are the uses of the modern periodic table?

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic number. Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol.

  1. The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius.
  2. Many scientists worked on the problem of organizing the elements, but Dmitri Mendeleev published his first version of the periodic table in 1869, and is most often credited as its inventor.

Since then, the periodic table has evolved to reflect over 150 years of scientific development and understanding in chemistry and physics. Today, with 118 known elements, it is widely regarded as one of the most significant achievements in science.

What is the trick to learn periodic table?

Mnemonics for Periodic Table in English –

Groups/Periods Mnemonics for Periodic Table in English Periodic Table Elements
Group 1 H igh ly Na ive Ki ds R u b C at’s Fu r H, Li, Na, K, Ru, Cs, Fr
Group 2 Be ena (and) M e g hna Ca me S t r aight Ba ck Ra pidly Be, Mg, Ca, Sr, Br, Ra
Group 13 B A G I T B, Al, Ga, In, Ti
Group 14 Cute Si sters Ge t S mall ( TIN y) P ro b lems C Si Ge Sn Pb
Group 15 N ew P olice As signs S u b ordinate Bi kram on duty Ni P As Sb Bi
Group 16 Oh, S eema Se nt T h e Po st O S Se Te Po
Group 17 F irst C lass B iriyani I n A us t ria F Cl Br I At
Group 18 He ro Ne ver Arrived; Kiran Xeroxed from Rohan He Ne Ar Kr Xe Rn
Period 4 Sc ience Ti (ea)cher V ineeta Cr iplani (and) M a n ager Fe roz Co uld N ot Cu t Z i n c Sc Ti V Cr Mn Fe Co Ni Cu Zn
Period 5 Y es, Z e r o N o b ody. Mo st T ea c hers R echecked R o h an’s P apers Ag ain to C onfirm Y Zr Nb Mo Tc Ru Rh Pd Ag Cd
Period 6 La xman’s H al f Ta ken, W asim Re ached O ut Ir on Plate Au dibly (for) H oney Lu Hf Tu W Re Os Ir Pt Au Ag
Period 7 Ak tually, R D S harma B ook H a s M a t h D ifficult S ums Ac Rf Db Sg Bh Hs Mt Ds
Lanthanides 2 Eu rope G ermany T urkey D enmark Ho lland Eu Gd Tb Dy Ho

Now, take a tour of all the blocks one by one in detail. To know, scroll the blog

How to learn periodic table 1 to 30?

Tricks to Remember the First 30 Elements in Periodic Table Modern Periodic Table Pdf

  • If we are talking about the first 30 elements then the starts with Hydrogen and ends at Zinc that is an element with atomic number 30.
  • Let’s go by the first 10
  • So, the first 10 elements are
  1. Hydrogen (H)
  2. Helium (He)
  3. Lithium (Li)
  4. Beryllium (Be)
  5. Boron (B)
  6. Carbon (C)
  7. Nitrogen (N)
  8. Oxygen (O)
  9. Fluorine (F)
  10. Neon (Ne)
  1. These elements can be remembered by this line:
  2. Harley Health Like Beautiful Body of Cheetah Name Opposite Falcon Nest.
  3. As H stands for Harley,
  4. He stands for Health,
  5. Li stands for like,
  6. Be stands for Beautiful,
  7. B stands for Body,
  8. C stands for cheetah,
  9. N stands for name,
  10. O stands for opposite,
  11. F stands for falcon,
  12. Ne stands for nest.
  13. The next 10 elements are
  1. Sodium (Na)
  2. Magnesium (Mg)
  3. Aluminum – (Al)
  4. Silicon (Si)
  5. Phosphorus (P)
  6. Sulfur (S)
  7. Chlorine (Cl)
  8. Argon (Ar)
  9. Potassium (K)
  10. 20.Calcium (Ca)
  • These elements can be remembered by this line
  • Nation Mgell Always Sign Patrol Safety Clause Agreement King of Canada
  • Na stands for nation,
  • Mg stands for mgell,
  • Al stands for always,
  • Si stands for sign,
  • P stands for patrol,
  • S stands for safety,
  • Cl stands for clause,
  • Ag stands for agreement,
  • K stands for King,
  • Ca stands for Canada.
  • The next 10 elements are
  1. Scandium (Sc)
  2. Titanium (Ti)
  3. Vanadium (V)
  4. Chromium (Cr)
  5. Manganese (Mn)
  6. Iron (Fe)
  7. Cobalt (Co)
  8. Nickel (Ni)
  9. Copper (Cu)
  10. Zinc (Zn)
  1. These elements can be remembered by this line
  2. Scent, Tie, Vase, Crystal, Mango Fetch the Cobra Night by Current Zendaya
  3. Sc stands for Scent,
  4. Ti stands for Tie,
  5. V stands for Vase,
  6. Cr stands for Crystal,
  7. M stands for Mango,
  8. Fe stands for Fetch,
  9. Co stands for Cobra,
  10. Ni stands for Night,
  11. Cu stands for Current,
  12. Zn stands for Zendaya.
Atomic No. Name of Element Valency Charge Lewis Symbol
1 Hydrogen 1 +1
2 Helium 0 0
3 Lithium 1 +1
4 Beryllium 2 +2
5 Boron 3 -3, +3
6 Carbon 4 +4
7 Nitrogen 3 -3
8 Oxygen 2 -2
9 Fluorine 1 -1
10 Neon 0 0
11 Sodium 1 +1
12 Magnesium 2 +2
13 Aluminum 3 +3
14 Silicon 4 +4, -4
15 Phosphorus 3 +5, +3, -3
16 Sulphur 2 -2, +2, +4, +6
17 Chlorine 1 -1
18 Argon 0 0
19 Potassium 1 +1
20 Calcium 2 +2
21 Scandium 3 +3
22 Titanium 4 +4, +3
23 Vanadium 5,4 +2, +3, +4, +5
24 Chromium 2 +2, +3, +6
25 Manganese 7,4,2 +2, +4, +7
26 Iron 2,3 +2, +3
27 Cobalt 3,2 +2, +3
28 Nickel 2 +2
29 Copper 2,1 +1, +2
30 Zinc 2 +2


: Tricks to Remember the First 30 Elements in Periodic Table