Question

The group number of element in periodic table indicates:​

Answer 1

hey hi....

group number indicate VALENCE ELECTRON

in the last shell(Valence shell)

I HOPE IT WILL HELPFUL FOR YOU...

Answer 2

Explanation:

The group number in the periodic table represents number of valence electrons of the elements in a certain group. For example, all the elements in Group−1 have 1 electron in their outer most shell.

Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. ... As you keep counting the columns, you'll know how many electrons are in the outer shell.