When does an eclipse occur? When an object in space moves
When the earth orbits around the sun
When an object in space moves into the shadow of another object
When an asteroid hits the moon

Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.