The elements a, b, c, d, and e with atomic numbers 9,11,17,12,and 13 respectively which pair of elements belong to the same group
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9
Element a and c belong to the same group 1 because they have same valence electrons in their outermost shell , that is 1 .
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Compchomp23:
Thank u for telling me my mistake
so b is not from grp with a and c
So which class u read ?
ok
class 10
me too
correct the ans
Done
done
ok
Answered by
6
element a and c belong to the same grp ie grp 17 of halogens as they have same no of valence electrons.
a is fluorine and c is chlorine
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a is fluorine and c is chlorine
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