Apr 09, 2021
The electronic configuration of Cobalt is 3d7 4s2 i.e. 7 electrons in 3d shell and 2 electrons in 4s shell, thus Chromium has 9 valence electron.
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The Valence Electrons are a type of outer shell electron. Which can participate in the formation of a chemical bond and attach to an atom even if the outer shell is not closed. It also contributes to ...
The valence electron of an element can be determined as the no. of electrons present in its outermost shell. It can be easily counted by knowing the group that an element belongs to....
There are only 6 electrons available in Oxygen. So, the oxygen has 6 valence electrons....