which disease can destroy red blood cells

Hemolytic anemia is a disorder in which red blood cells are destroyed faster than they can be made

So the answer is Anemia

d.) circle motion requires a force to give it a centripetal acceleration.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8