Answer:
Atomic number. The atomic number indicates the number of protons within the core of an atom. ...
. Atomic mass. The name indicates the mass of an atom, expressed in atomic mass units (amu). ...
. Electronegativity according to Pauling. ...
. Density. ...
. Melting point. ...
. Boiling point. ...
. Vanderwaals radius. ...
. Ionic radius.