Question
Fri March 08, 2013 By: Arathi M
 

Out of the elements Cr(Z=24) Mg(Z=12) and Fe(Z=26) identify the element with five electrons in the 3d subshell.

Expert Reply
Fri March 08, 2013

Cr (24) =1s2 2s2 2p6 3s2 3p6 4s1 3d5(electronic configuration)

so it contains 5 electrons in 3d subshell.
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