Question

(ii) An element has its electron configuration as 2,8,8,2. Now answer the following
questions
a) What is the atomic number of this element?
b) What is the group of this element?
c) To which period does this element belong?​

Answer 1

Answer:

a) 20

b) 2

c) Group 4

Answer 2

Answer:

a. the atomic number of this element is 20

(2+8+8+2=20) and the element is calcium

b. the given element is calcium a calcium belongs to group 2 (alkaline earth metals or s group elements)

c. calcium belongs to 3rd period