Question

An atom has the following electron configuration.

1s22s22p63s23p4

How many valence electrons does this atom have?

Answer 1

• 6 valence electrons.

Step-by-step explanation:

Electronic configuration of the atom :

• 1s² 2s² 2p⁶ 3s² 3p⁴

Atomic number of the element = 16

Name of The element = Sulpher

Valence electrons :-

• The electrons which are distributed in the outermost shell of the atom are called valence electrons.

Here, sulpher has 6 electrons in the outermost shell, i.e 3s² 3p⁴ (4 +2 = 6) Therefore, The given atom (Sulpher) has 6 valence electrons.