The symbol (He) comes from the first two letters of the word Helium
The symbol for hydrogen is H, and the symbol for helium is He.
The letter H is the chemical symbol for the element hydrogen.
The letter H is the chemical symbol for the element hydrogen.
The atomic symbol for hydrogen is H.
Protons: H+ or H3O+ when in water.
Helium's chemical symbol is He.
H is the symbol
The chemical symbol for hydride is H-.
The symbol for hydrogen on the periodic table is H.
The symbol for hydrogen is H, and the symbol for helium is He.
The letter H is the chemical symbol for the element hydrogen.
The symbol for hour is h.
H is the symbol of hydrogen.
liquid, and gas.
gaseous state.
Helium is an odorless gas.
-268.93 °C