No, sodium is an element that exists as single atoms and not as molecules. Sodium is a monoatomic element because it consists of single atoms.
All elements can be a gas. Some common elements that are gas at room temperature include: Oxygen, Nitrogen, Hydrogen, Helium, Neon, Argon, Krypton, Xenon, and Fluorine.
Sodium does not exist as molecules in the room temperature and pressure because it is a metal. Although it forms diatomic 'molecules' in gaseous phase at very high temperatures.
the covalent radius of argon is 97 pico meter
No, it is most commonly regarded as tetratomic (tetra=4) molecule: P4
Helium is monoatomic.
yes they exsist as monoatomic molecule in vapour state
No - chlorine exists as Cl2 and is thus diatomic.
No. At room temperature sulfur forms a ring-shaped eight-atom molecule.
Helium is monoatomic.
Argon is a monoatomic gas, meaning it exists as individual atoms in its natural state.
Liquid bromine is a monoatomic molecule as it is a liquid