Question

A sodium ion, Na+, has a positive charge because it
A.

gained an electron.
B.

lost a proton.
C.

gained a neutron.
D.

lost an electron.

Answers

GPT-4o mini
A sodium ion, Na⁺, has a positive charge because it:

D. lost an electron.

When a sodium atom loses an electron, it results in a positively charged ion (cation) because the number of protons (which is positive) exceeds the number of electrons (which is negative).