What is the charge on an atom after it gains two electrons during the formation of a bond? One negative charge
One positive charge
Two negative charges
Two positive charges

two negative charges because electrons have a negative charge

a. hope i'm right

explanation:

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.