Question

A non metal which forms a polyatomic molecules with more than three atoms

Answer 1

The answer should be oxygen as it makes polyatomic molecules or radicals like SO4, NO3

Answer 2

phosphorous is a poly atomic molecules with 4 atoms(p4)

• poly atomic means that the atoms contains more than 2 atoms

• such atoms are usually non metallic in character

• phosphorous is a poly atomic molecule
• it is a  white color solid
• it a non metal with atomic no 15 and atomic weight 31g
• it constituent 1% of the total weight of the human body

hence,phosphorous is a poly atomic molecules with more than three atoms.