Explanation:
The total number of electrons in the outermost shell orbitals gives the valency or the combining power of the element concerned.
The number is the same as the number of electrons gained or lost or shared in interatomic bonding.
The number of electrons lost denotes the charges on ions that they form.
On the periodic table, a group or family have the same number of electrons in their outermost shell. The group number denotes the amounts of electrons in their outer shell.
Here is a possible list of valencies of elements from valence electrons;
Number of valence electrons Possible valencies
1 1
2 2
3 3, 1
4 4, 2
5 5, 3
6 6, 2
7 7 , 1
8 8,0
These valencies are the charges on the ions. The bold ones are the preferred ones.
Group 8 elements do not carry any charges .
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Valence shell of carbon brainly.com/question/5274289
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Move or rotate as well since they stay in place and we move.
In redox reactions, there is no net loss or gain of electrons, so the answer is (1) equal to the total number of electrons gained
