Can you tell the difference between an element and compound by measuring mass and volume?

As you move from right to left on the periodic table the atomic radius fill in the blank

Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? a) the need for a coenzymeb) allosteric inhibitionc) competitive inhibitiond) insufficient cofactors

Which is an example of a highly unstable isotope that is often used in fission reactions?