How does one determine the number of core electrons an atom has?

O

A. Subtract the atomic number from the atomic mass.

O

B. Subtract the group number from the atomic number.

O

C. Add the atomic number and the number of valence electrons.

O

D. Add the group number and the period number.

Question

Fatima Carrillo

17 October, 15:34

+3

Answers (1)

Know the Answer?

Amie · Answer 1

subtract the group number from the atomic number

Explanation:

im too lazyy XD

How does one determine the number of core electrons an atom has?OA. Subtract the atomic number from the atomic mass.OB. Subtract the group number from the atomic number.OC. Add the atomic number and the number of valence electrons.OD. Add the group number and the period number.