Valence electrons

Chemistry Level 2

Find the number of valence electrons in

  1. Fe

  2. Co

  3. Ni

  4. Cu

  5. Zn

Give the answer by adding all the numbers of valence electrons of the five metals.


The answer is 9.

Sanchit Batra by Sanchit Batra , 29, India

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2 solutions

Rhea Kavuru
Dec 6, 2020

Fe-- 2 valence electrons

Co-- 2 valence electrons

Ni-- 2 valence electrons

Cu-- 1 valence electrons

Zn-- 2 valence electrons

Adding all the valence electrons, you get a total of 9!

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Sanchit Batra
Sep 10, 2014

Fe- 3d^6 4s^2 valence orbital=4s with electrons=2

Co- 3d^7 4s^2

Ni- 3d^8 4s^2

Cu- 3d^10 4s^1 VO=4s with electron=1

Zn- 3d^10 4s^2

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