Question 3 (1 point)
If you have an ion of Calcium-41 with a +2 charge. Match the number for each of the
following (you may use the same selection more than once).
1. 18
Mass number
2. 20
Atomic number
3. 21
Number of protons
4. 38
5. 39
Number of electrons
6. 40
Number of neutrons
7. 41