1.

An element "X" has mass number 35 and the number of neutrons, is 18. Identify the group number and period of "X".

Answer»

Atomic number of X = Mass number of X- No. of neutrons : 35 - 18 = 17 

Electronic configuration = 2, 8, 7 

Croup number = 17, Period No. = 3



Discussion

No Comment Found

Related InterviewSolutions