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Modern Periodic Law: Properties of elements are a periodic function of their atomic numbers. The periodic table, based on the Modern Periodic Law is called the Modern Periodic Table. First period contains 2 elements - Hydrogen and Helium.
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Here is your answer....
According to the modern periodic law:
For classification of elements, the elements were arranged according to the increasing atomic number which gave modern periodic table.
(i) It has 18 vertical columns known as Groups
(ii) It consists of 7 horizontal rows knowns as Periods = 7
Hope it helps you.
According to the modern periodic law:
For classification of elements, the elements were arranged according to the increasing atomic number which gave modern periodic table.
(i) It has 18 vertical columns known as Groups
(ii) It consists of 7 horizontal rows knowns as Periods = 7
Hope it helps you.
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