Give an example of a gaseous non-metal.
2. Non-metals possess higher ionisation energies, electron affinities, and electronegativity.
3. Non-metals have high electronegativity, therefore, they tend to attract electrons in a chemical reaction to form an acidic compound.
The physical state of non-metals:
Non-metal exists in all three forms of matter, but mostly they exist in a gaseous state.
Some examples of non-metals are oxygen, nitrogen, sulphur, chlorine etc.
|Non-metal||State at Room Temperature||Symbol|
Figure: Table representing a list of non-metals with their physical states.
Most of the non-metals are in the gaseous state at room temperature.