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search Hydrogen (diatomic nonmetal) Helium (noble gas)
Lithium (alkali metal) Beryllium (alkaline earth metal)
Boron (metalloid) Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal) Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal) Neon (noble gas) Sodium (alkali
metal) Magnesium (alkaline earth metal) Aluminium (poor metal)
Silicon (metalloid) Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal) Chlorine (diatomic nonmetal)
Argon (noble gas) Potassium (alkali metal) Calcium (alkaline
earth metal) Scandium (transition metal) Titanium (transition
metal) Vanadium (transition metal) Chromium (transition metal)
Manganese (transition metal) Iron (transition metal)
Cobalt (transition metal) Nickel (transition metal)
Copper (transition metal) Zinc (transition metal) Gallium (poor
metal) Germanium (metalloid) Arsenic (metalloid)
Selenium (polyatomic nonmetal) Bromine (diatomic nonmetal)
Krypton (noble gas) Rubidium (alkali metal) Strontium