A sodium ion has 11 protons, 12 neutrons, and 10 electrons.

Question

Which of the following is true?

Answer options with 5 options
A.
Sodium's atomic mass is 33 atomic mass units.

B.
Sodium's atomic number is 21.

C.
Sodium has a net negative charge.

D.
Sodium has a net positive charge.

E.
Sodium has gained a neutron.

Answer 1

The correct answer is D. Sodium has a net positive charge.