C. If an electron is added to the outer shell, how will this affect the charge and volume of the atom? if an electron is added on the outer shell

when an atom gains an electron, it gains a negative charge . it's volume increases as well due to the increase in repulsion between the electrons

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.