1.

The atomic numbers of three elements are 5, 7 and 10 respectively. Which of these:(a)Belongs to group 18(b) Belongs to group 15(C) Belongs to group 13ond-​

Answer»

Answer:

a) to 10 b) BELONGS to 7 and c) belongs to 5

Explanation:

because 5 atomic number comes in the group 13 that's boron and 7 atomic number belongs to 15 that's NITROGEN and 10 belongs to 18 that is NICKEL.



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