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Question 14
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Ans-14-(i)- Sodium ( first group third period)
(ii)-phosphorus ( fifteenth group , third period)
(iii)-carbon ( fourteenth group, second period)
(iv)-helium( eighteenth group,first period)
(v)-Aluminium(thirteenth group, third period)
(vi)- Calcium(second group, fourth period)
hope it helps you
(ii)-phosphorus ( fifteenth group , third period)
(iii)-carbon ( fourteenth group, second period)
(iv)-helium( eighteenth group,first period)
(v)-Aluminium(thirteenth group, third period)
(vi)- Calcium(second group, fourth period)
hope it helps you
ktt31478:
Thanks
most welcome
(i) it can be pottasium either ,, am i right
yes both of them are soft metals
What is variable valency?
which can show more than one valency
like in phosphorus its valency is -3 but because it has vacant d orbital it can expand its valency
thats why it is able to form both PCl3 and PCl5
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-(i)- Sodium ( first group third period)
(ii)-phosphorus ( fifteenth group , third period)
(iii)-carbon ( fourteenth group, second period)
(iv)-helium( eighteenth group,first period)
(v)-Aluminium(thirteenth group, third period)
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