Question

the number of electrons in the valence shell of calcium is
1)6
2)8
3)2
4)4​

Answer 1

Answer:

The number of electrons in the valence shell of calcium is 2.

And therefore, option (3) 2 is the correct answer.

Explanation:

Electronic Configuration :

For calcium :

• The Electronic configuration of the element Calcium is 2,8,8,2.

• It's valency is 2.

• The element Calcium has 20 protons and 20 neutrons.

What is Electronic Configuration?

• Distribution of electrons in different orbits or shells is called electronic configuration.

• The distribution of electrons into different shells (also called as orbits) of an Atom was suggested by Bohr and Bury.

• The atoms of different elements contain different numbers of electrons , protons and neutrons.

Answer 2

Answer:

there are 2 electrons in the valance shell of calcium