The formula of a compound indicate the number of atom each element in a molecule of a compound in question.
Te oxidation number of a pure element in it's in atomic or molecular state is zero.E.g.H,O,He etc
RADIATION CAUSING POOR HEALTH AND BIRTH DEFECTS.
The atomic radius is the same thing as the Atomic Mass.
The atomic number is the number of protons in an atom of an element.
All the elements has an atomic weight; sometimes for the unstable radioactive elements is indicated only the value of the atomic mass of the most stable isotope.The term atomic weight is used for elements and the term atomic mass for isotopes (after the rules and the tradition of IUPAC).
They are isotopes.
The term is nuclear notation or nuclear symbol. It is a shorthand way to represent the composition of an atomic nucleus, indicating the chemical element symbol, mass number, and atomic number of a particular nucleus.
This is the definition of an "isotope".
Nuclear fission
Most were killed from the explosion, some survived but may have short term or long term radiation illness which can be terminal.
Yes, atomic energy was the term used up to the 50's, then nuclear energy became the normal term, it is more correct.
economical, religous,socialcauses etc.
people died,