Charge = number of proton - number of electron = 18-22 = -4
SO, OPTION A IS YOUR ANSWER........
Explanation:
An element just has one-type atoms/atom (e.g. O2). Meanwhile, a compound is a variety of atoms (e.g. H2O).
It's stored at the reactor site.
Dmitri Mendeleev Was the name of the guy you where looking for
Answer:
Phosphorus
Explanation:
A group is a vertical column on the periodic table.
A period is a horizontal row on the periodic table.
