1a
4a
Fluorine is a nonmetal. It belongs to the halogen group in the periodic table, which consists of highly reactive nonmetallic elements.
No, helium is not both a metal and a nonmetal. The element helium (He), along with its cousins in Group 18 of the periodic table of the elements, is a monatomic nonmetal.
Beryllium is a metal. It belongs to alkali metal group or group 2.
No. Chlorine is a main group element, but is a nonmetal in the halogen family (group 17).
Silver nitrate is a compound. It consists of the metal silver and the compound nitrate. Nitrate consists of nitrogen and oxygen.
Sulfur is classified as a nonmetal. It is a nonmetallic element found in group 16 of the periodic table.
Magnesium is a metal. It belongs to group 2.
Selenium is a non metal. It belongs to group 16.
Oxygen is a non metal. It belongs to group 16.
Potassium is a metal. It belongs to the alkali metal group on the periodic table.
iodine is a nonmental which falls in the group elements called HALOGENS;chlorine,fluorine,bromine and iodine.
Beryllium is a metal. It belongs to alkali earth metal or group 2.