1.

The atomic numbers of five elements A, B, C and D are given below. Element Atomic number A3B5C7D9E10i. Which element belongs to group 18?  ii. Which element belongs to group 15?  iii. Which element belongs to halogen group?  iv. Which element belongs to alkali metals? 

Answer»

i. E 

ii. C 

iii. D 

iv. A 



Discussion

No Comment Found

Related InterviewSolutions