Under standard conditions, it is a gas.
sodium is a solid-metal
Silicon is a solid.
At normal temperature and pressure, it is a gas.
copper (II) carbonate is a solid
It is neither of them. Vacuum contains nothing
gas
liguid
Fluorine is a gas.
sodium is a solid-metal
sodium is a solid-metal
Silicon is a solid.
At normal temperature and pressure, it is a gas.
Normally a gas.
xenon is a gas at STP
copper (II) carbonate is a solid
Solid, liguid, and gas.
At room temperature mercury is a liquid.