Write the complete electron configuration for the chlorine atom.

Question

Write the complete electron configuration for the chlorine atom.

 

Using NOBLE GAS notation write the electron configuration for the nitrogen atom.

Answer 1

Cl has 17 electrons and is a p block element in the 3rd period, so will have 3p valence electrons.

1s2 2s2 2p6 3s2 3p5

 

N has 7 electrons and is a p block element in the 2nd period, so will have 2p valence electrons. The closest noble gas is He.

[He]2s2 2p3