Identify the monoatomic ion that has the following properties.

Question

a. 11 protons and 10 total electrons

Na+


b. 9 protons and 8 valence electrons

F-

c. 47 protons and 46 total electrons

Ag+


d. 28 protons and 26 total electrons

Ni2+

Answer 1

All look ok except for b.
9+ and 8- gives F+
9 protons and 9 electrons = F^o which we write as F₂.
9 protons and 10 electrons = F^-

Answer 2

50 protons 68 neutrons and 46 electrons