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What is periods in chemistry Modern periodic table

Posted by ????? ??? 7 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 7 years, 1 month ago

The Modern Periodic Table consists of 18 vertical columns termed as ‘groups’.
It also consists of 7 horizontal rows termed as ‘periods’.
The elements present in any one group have the same number of valence electrons. For instance, elements like fluorine (F) and chlorine (Cl), belong to group 17.

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Raunak _ Pandey ?? 7 years, 1 month ago

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