Q. 45.0( 1 Vote )
A metal M belongs to 13th group in the modern periodic table. Write the valency of the metal.
The metal m belongs to 13 th group mean the valency of the group 13 is 3
The valency for different groups are given below:
Valency of group 1 element is 1.
Valency of group 2 element is 2.
Valency of group 13 element is 3.
Valency of group 14 element is 4.
Valency of group 15 element is 3.
Valency of group 16 element is 2.
Valency of group 17 element is 1.
Valency of group 18 element is 0.
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Account for the following:
a. Cations are smaller in size than the corresponding atom.
b. The noble gases were discovered very late.Xam idea - Science
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