what happens when an atom gains an electron? a. it has an increase in the number of protons. b. it becomes a…
what happens when an atom gains an electron? a. it has an increase in the number of protons. b. it becomes a negative ion. c. it has an increase in the number of neutrons. d. it becomes a positive ion.
Answer
Brief Explanations:
An atom is neutral with equal number of protons and electrons. When it gains an electron, it has more electrons than protons, resulting in a negative - charge. This negatively - charged particle is called a negative ion. Protons and neutrons are not affected by an atom gaining an electron.
Answer:
B. It becomes a negative ion.