The electron configuration for Cuis 1s22s22p63s23p64s13d10. What percentage of valence electrons does copper have?

"The electron configuration for Cuis 1s22s22p63s23p64s13d10. What percentage..." was answered by students like you

College
Physics
Advanced Physics

SzigetiWG4

Answered question

2022-11-25

The electron configuration for

Cu

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{1} 3 d^{10}

. What percentage of valence electrons does copper have?

Answer & Explanation

Lilia Nolan

Beginner2022-11-26Added 7 answers

Valence Electrons:
Valence electrons are the number of electrons that make up an atom's final or outermost shell. In most cases, the number of valence electrons in a given molecule also serves as a representation of its group number.Valence electrons of Copper :
The ground state electronic configuration of

Cu

is given as:

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {4 s}^{2} {3 d}^{9}

.But as we all know, the configurations with half and full fills are more stable. So, one of the electrons of

{4 s}^{2}

get jumped into

{3 d}^{9}

.Which forms the exciting electronic configuration of Cu as:

{1 s}^{2} {2 s}^{2} {2 p}^{6} {3 s}^{2} {3 p}^{6} {4 s}^{2} {3 d}^{9}

.As we see here, the valence shell of copper is the fourth shell, thus the total electrons present in the

4 s

subshell are its valence electrons.Hence, copper has

1

electrons as its valence electron.Thus, the number of valence electrons that copper contain is

1

Do you have a similar question?

Recalculate according to your conditions!

New Questions in Advanced Physics

Didn't find what you were looking for?