What is moden periodic table

Law of Modern Periodic Table states that properties of elements are the periodic function of their atomic numbers. In the modern periodic table, elements are arranged in order of their increasing atomic numbers.

Explanation of Modern Periodic Table:

• Elements are arranged in order of their increasing atomic numbers.
• The vertical columns are known as groups and horizontal columns are known as periods; in the modern periodic table.
• There are 18 groups and 7 periods in the modern periodic table.

Groups in Modern Periodic Table:

1^st group: Alkali metals are placed in the 1st group in the modern periodic table. Hydrogen is also placed in the 1st group although hydrogen is not an alkali metal.

2^nd group: Alkaline earth metals are placed in the 2nd group in the modern periodic table.

Elements placed in 1st and 2nd groups in the modern periodic table are collectively known as light metals.

3^rd to 12^th group: Transition elements are placed from 3rd to 12th group in the modern periodic table.

13^th group: Metals are placed in the 13th group; except boron which is a metalloid.

14^th group: Carbon, silicon, germanium, tin and lead are placed in this group. Among them, carbon is a non-metal, silicon and germanium are metalloids and tin and lead are metals.

15^th group: Nitrogen, phosphorous, arsenic, antimony and bismuth are place in the 15th group; among which nitrogen and phosphorous are non-metals, arsenic and antimony are metalloids and bismuth is a metal.

16^th group: Oxygen, sulphur, selenium, tellurium and polonium are placed in this group, among which oxygen, sulphur and selenium are non-metals, tellurium is metalloid and polonium is a metal.