yes. it is colourless
Helium is a colourless gas
No. Helium is a odourless and colourless gas.
Helium is a colorless, odorless gas at room temperature.
helium is a colourless odourless gas
It is a colourless gas at STP
Helium is a colourless gas, hence transparent. Please see the link.
Helium is a colourless, odourless gas with an extremely low boiling point
Helium is a colourless, odourless gas. It belongs to group 18 and is chemically inert.
Helium is a colourless, tasteless and odorless, non toxic and inert gas - no metal
Helium is a noble gas, it is colourless, odourless gas at STP. It is a chemically inert element.
Helium is an element a pure substance it is a chemical. It has properties eg it is a gas, it is colourless, it is odourless
it is a colourless odourless gas at 20 degree Celsius