Question

How many number of electrons and protons present in ca+2?
A) 18,20
B) 20, 20
C) 20, 22
D) 18, 18​

Answer 1

Answer:

C MAY BE NOT SURE

Explanation:

BUT I THINK SO

Answer 2

Answer:

. Ca and 40Ca2+ both have 20 protons. Ca has 20 electrons. Ca2+ has 18 electrons