Answer:
They are heavy metals.
Explanation:
Heavy metals are generally defined as metals with relatively high densities, atomic weights, or atomic numbers.
The symbolic representation of its compound and its composition.
or a chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound.
ANSWER IS B
A cation is a positively charged ion.
An anion is a negatively charged ion.
If it's neutral, it's just an ion.
The answer you are looking for is A. If you need me to show you how I got the answer let me know. :)