Answer:
A- Uranium is not only the radioactive element
Sound waves need to travel through a medium such as a solid, liquid, or gas. The sound waves move through each of these mediums by vibrating the molecules in the matter. If you need more explained ust ask and I an give it more detailed :)
1.979 multiply 1979 by 0.001
22Na and 23Na is the notation that represents different isotopes of the element sodium.
A carbohydrate comes from a chain of carbon atoms with an H2O associated with each other