Question

The atomic mass of an element whose atoms consist of six protons, seven neutrons, and six electrons is _____.
6
12
13
19

Answer 1

Atomic Mass equals Protons + Neutrons, so 6+7=13

The atomic mass of an element whose atoms consist of six protons, seven neutrons, and six electrons is 13

Answer 2

atomic mass = neutrons + atomic number/protons/ electrons
atomic mass = 7 + 6
atomic mass = 13

The atomic mass of this element is 13 amu.