Why chlorine has a low boiling point than sodium chloride?

Whilst the covalent bonds within the chlorine molecules are strong, there are only weak intermolecular forces between molecules, which require very little energy to overcome. Therefore chlorine has a low boiling point and so is a gas at room temperature.

Why is the boiling point for chlorine lower than the boiling point for iodine?

Iodine is a larger molecule, with more electrons, than chlorine. Therefore Iodine has stronger intermolecular forces than chlorine, which require more energy to break. This results in Iodine having a higher boiling point than chlorine.

Why does chlorine have a low boiling point GCSE?

Chlorine has a lower boiling point as it is smaller in size than bromine. Chlorine has fewer electrons than bromine and fewer electron shells so chlorine is smaller in atomic radius.

What is the melting point and boiling point of chlorine?

chlorine

atomic number	17
melting point	−103 °C (−153 °F)
boiling point	−34 °C (−29 °F)
density (1 atm, 0 °C or 32 °F)	3.214 g/litre (0.429 ounce/gallon)
oxidation states	−1, +1, +3, +5, +7

Why does chlorine have a higher boiling point than argon?

Chlorine, Cl2, is a much smaller molecule with comparatively weak van der Waals attractions, and so chlorine will have a lower melting and boiling point than sulphur or phosphorus. Argon molecules are just single argon atoms, Ar.

Why is the boiling point of chlorine higher than argon?

Four molecular elements Phosphorus, sulfur, chlorine and argon are simple molecular substances with only van der Waals attractions between the molecules. The molecules are bigger than phosphorus molecules, and so the van der Waals attractions will be stronger, leading to a higher melting and boiling point.

Why does chlorine have a higher boiling point than hydrogen?

Chlorine has a boiling point of 238 K while hydrogen chloride has a boiling point of 188 K. Hydrogen chloride has dipole-dipole forces so I would expect it to have greater inter-molecular forces and thus a higher boiling point.

Why is chlorine less reactive than fluorine?

The reactivity is the halogens ability to gain an electron, so number of electrons already in the atom plays a vital role. Chlorine has more electrons so repels a reacting electron with greater force than fluorine, making it less likely to react.

Why are the boiling points of fluorine chlorine and bromine low GCSE?

Their chemical formulae are F 2, Cl 2, Br 2 and I 2. The bond between the atoms in a molecule is very strong, but the forces of attraction between molecules are weak. This explains why group 7 elements have low boiling points.

What elements have the lowest boiling point?

helium, at the top of group 0, has the lowest boiling point of any element.