Uranium is a heavy material used to create nuclear energy, when nuclear fission occurs, Uranium releases a lot of energy, that is used to produce thermal energy.
Answer:
An experiment or trial that uses controls, usually separating the subjects into one or more control groups and experimental groups
Explanation:
The most of the mass of an atom is located In the nucleus
<span>The atomic number of a neutral atom is equal to
the number of protons and the number of electrons of the atom. The atomic
weight meanwhile is equal to the sum of the number of protons and number of
neutrons. We add therefore the number of protons and number of neutrons </span>