Question

Find out the number of valence electrons in 16 8 0 and 14 7 N.​

Answer 1

Answer:

There are seven periods numbered as 1, 2, 3, 4, 5, 6 and 7.

Each period consists of a series of elements having same valence shell.

Each period corresponds to a number of shells.

Groups :

There are eighteen groups numbered as 1, 2, 3, 4, 5, ........... 13, 14, 15, 16, 17, 18.

Group consists of a series of elements having similar valence shell electronic configuration.

Across a period the valence electrons increases, while down a group they remain same.