Question

for mg 2+ with 13 neutrons what is the atomic number *
78
12
53
10
131
11
56
44
40
22
13
100
25
54

Explanation:

Step1: Recall atomic number concept

The atomic number of an element is a characteristic property and does not change with the ion - state. Magnesium (Mg) has an atomic number of 12 regardless of whether it is in its neutral state or as an ion.

Answer:

12