The answer is b. radon-222. The alpha decay means that it will emit an alpha particle when decays. The alpha particle has two protons and two neutrons. So Radium(88) minus two protons will become Radon(86). And the atomic mass will become 226-4=222.
Answer:
Explanation:
final temperature of the cube
initial temperature of the cube
mass of the cube
specific heat of aluminum
Answer:
A
Explanation:
if the earth slows down then that will give more time to the sun meaning days/nights will be longer
The atoms undergo chemical changes.
New substances may be a product of the reaction.
Answer:
It should be all of them
Explanation:
It’s because it was in your question you wrote out
