Radon-222 is a radioactive gas with a half-life of 3.82 days. how long would it take for fifteen-sixteenths of a sample of radon-222 to decay?
15.28 days
30.56 days
45.84 days
49.66 days

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'