Question

The electronic configuration of four elements is given: A (2,8,1) , B(2,8,5) , C(2,8,6) and D (2,8,8). Which one can form ion with three negative charges

please answer i will mark you brainlist.

Answer 1

Answer:

the answer is :- B) (2, 8, 5)

Answer 2

Answer:

B

Explanation:

B(2,8,5) .In order to form negative ion it should accept electrons.Either  element B can donate 5 electrons or it can accept 3 electrons.It is easier for the element to receive 3 electrons. So it forms negatively charged ion.