The electronic configuration is: 2,8,8,2
(a) Since total energy shells are 4, so it will belong to period 4.
(b) X has 2 electrons in its valence shell, so it belongs to group no. 2.
The valency will be 2.
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Glimpses of India39 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation