Question

Predict the group number and period number of Z=28​

Answer 1

Answer:

Group number is 2 and period no. is 4

Explanation:

since z has 28 electrons .the electronic configuration will be 2,8,16,2 so there are 2 electrons in the outermost shell and therefore the group no. is 2 and it has 4 shells so the period no is 4