Chemistry
Ionisation potential is maximum in:
- Alkaline earth metals
- Halogens
- Inert gases
- Alkali metals
Answer
Inert gases
Reason — Ionisation potential (or ionisation energy) is the energy required to remove the outermost electron from an atom in the gaseous state. It generally increases from left to right across a period (because effective nuclear charge increases) and decreases down a group (because atomic size and shielding increase).
Noble gases have completely filled valence shells and very small atomic radii within their periods; therefore, much more energy is needed to remove an electron from them, giving them the maximum ionisation energy among the groups listed.
Related Questions
The product formed at the cathode in electroplating of an article with Silver is:
- Hydrogen gas
- Silver ions
- Silver atoms
- Oxygen gas
If the RMM of carbon monoxide is 28, then its vapour density is:
- 7
- 56
- 14
- 88
A triple covalent bond is present in:
- Methane
- Ammonia
- Nitrogen
- Chlorine
Assertion (A): Acetic acid has four hydrogen atoms in its molecule but its basicity is one.
Reason (R): Acetic acid has only one replaceable hydrogen atom.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.