The addition of one or more electrons to a neutral atom results in a a. positively-charged cation
b. negatively-charged anion
c. negatively-charged cation
d. positively-charged anion

A

Explanation:

Atoms that gain extra electrons become negatively charged. A neutral chlorine atom, for example, contains 17 protons and 17 electrons. By adding one more electron we get a negatively charged Cl- ion with a net charge of -1.Neutral atoms can be turned into positively charged ions by removing one or more electrons.

it's c. elements are placed in rows based on how may valencies electrons have.

just did the assignment and the answer was #1 +2 n