helium has only one energy level (with 2 electrons in it).
8
liquid, and gas.
gaseous state.
Helium is an odorless gas.
Helium's chemical symbol is He.
-268.93 °C
The electrons move up to a higher energy level.
because it loses enery and is real eased as heat.
helium is a colourless odourless gas
because it loses enery and is real eased as heat.
because it loses enery and is real eased as heat.
because it loses enery and is real eased as heat.