Among the following the groups exhibit valency '3' are
a) II A
b) III A
c) IVA
d) IA
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Answer:
3A group elements exhibit valency 3
Answered by
1
the groups that exhibit valency '3' are
b) III A
Explanation:
- The element in group 3A are termed as the boron family. this is because boron is the first member of the group. They all have three electrons more than the inert gas configuration. As a result of this the lose three of its electron to gain the stable state. As a result of this they exhibit a valency of 3. However the elements in lower part of the group also exhibit variable valency
- Aluminium is also an important element of this group
to know more about boron family
Ionisation potential trend of boron family B Al. Ga. In. Tl. - Brainly.in
https://brainly.in/question/1396503
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