Based on the periodic table shown above, elements in which of the following groups have the greatest density?
a.
group 18
b.
group 17
c.
group 15
d.
group 12

D.na is the answer hope this

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

The answer to the question is d