Question

The number of core electrons present in Magnesium is
a) 8
b) 9
The number of core electrons present in Calcium is
a) 8
b) 18
c) 10
c) 10
d) 12
d) 12.
Penultimate shollier​

Answer 1

Answer:

the answer of the first question is "10" not "8" or "9"

the second answer is ' b) 18 '

Answer 2

Answer:

18 is the correct answer