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This element belongs to group 18 and period 3
hope this helps.....
hope this helps.....
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if the atomic no. of an element is 18 than it's electronic cofrigation is
2,8,8 so it has total 3 shells therefore it belongs to 3rd period.
and it has 8 no. of valence electron so it also belongs to 18th group..
2,8,8 so it has total 3 shells therefore it belongs to 3rd period.
and it has 8 no. of valence electron so it also belongs to 18th group..
cm411:
hmm ask...
if there is more than 2 valance electrons, we have to + 10 every time
yaa as we don't have to study the group between 3 to 12
if the valence electrons are 3 then it becomes 13
tq
and if they are 4 in no. then it becomes 14...
ur welcome...
please mark my answer as brainliest. ....
thx
it"s ok
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