Boiling point across groups vary from "summary" of The Periodic Table by Eric R. Scerri
The boiling point of chemical elements can vary drastically depending on the group they belong to. Elements belonging to different groups often have very different boiling points, with some having extremely high temperatures.- Boiling points across different groups of elements vary significantly. Generally, the boiling points increase with an increase in atomic number and on going down a group.
- Halogens generally exhibit higher boiling points especially along the upper reverse part of halogen series that is fluorine, chlorine, bromine and iodine.
- Noble gases such as helium and neon do not possess any boiling point but their liquefied forms can be vaporized at high temperatures.
- Alkaline earth metals tend to have relatively higher boiling points compared to alkali metals which could be attributed to its lesser covalent character.
- Transition metals generally require greater amount of energy to come into gaseous phase than non-transition elements.
- Diatomic molecules consisting of two same atoms are seen to have the highest boiling points among other molecules of similar categories since they possess maximum degree of polarity.
