HYDROGEN - is it a metal or a non-metal ?

Hydrogen is the lightest element known to man.

It is a NON-METAL

It is Highly Reactive due to its 1 free electron.

It is highly combustible.

It has a mass of 1.00794g per mol.

And, it has an atomic number of 1.

Fact: Space shuttles and other rockets sent to space use compressed liquid hydrogen as fuel source.

It's a non-metal. However, in 1935, a group of chemists at Princeton University predicted that hydrogen may behave like a metal at pressures in excess of 250,000 atmospheres (25GPa). This initial prediction was found to be incorrect, and now a team from Edinburgh University are attempting to observe metallic hydrogen using pressures of 5,000,000 atmospheres and above (>500GPa). To put that in perspective the pressure on you right now due to the atmosphere is around 101kPa, depending on your location and local weather. Also, solid hydrogen is used to describe hydrogen when it is in its solid state. This isn't quite the same as metallic hydrogen, as they exhibit different properties. It's still hydrogen, though.

It is a non-metal. technically its a gas

definitely a non-metal,

it is a non-metal because it forms covalent bonds with other non-metals

like HCl

Hydrogen is gas.

why do you have to ask this?