A Se ion has a mass number of 77 and a charge of -2. Determine the number of neutrons, protons, and electrons

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

so she was walking and she stepped on warm jeffy , uh uh uhh dadye i just pooped my pants

gas

explanation:

smoke is the matter of a gas