Answer:
crushing an ice cube
Explanation:
crushing an ice cube can be redone by freezing it again in its position
Answer:
if you add a neutron to lithium-7 it becomes a compound nucleus of lithium-8
I think it is the gas and the heat in it
Add proton + neutrons = Mass 37
Proton is same as your atomic mass= 17
If you go on the periodic table look up 17 and it will give u the letter.