Question

electron in the valence shell and the valency
empty spaces.
Symbol of
Molecular
formula of
compound
Valency
of the
Electronic
configuration of
the element
Number
of valence
electrons x
No.
7
8-7 = 1
2.8.7
2
No compound
Na
Mg
MgC1
CH
1
8
C
11
AICI
5.9 Relationship between valency and electronic configuration
Use your brain power​

Answer 1

Explanation:

Element "A" forms a chloride ACl

4

. Valence electrons of chlorine =1 . Valence electrons of element

′

A

′

=4. Therefore, it from a chloride with a molecular formula of ACl

4

. Valency is the number of free electrons in the outermost shell of an element and the valence electrons help in formation of compounds.