What is the term for the energy required to remove one electron from a gaseous atom?
A
Electron affinity
B
Electronegativity
C
Lattice energy
D
Ionisation energy
Correct Answer: Option D — Ionisation energy
Explanation:
Ionisation energy is the minimum energy required to remove one electron from a gaseous atom in its ground state with first ionisation energy...
Ionisation energy is the minimum energy required to remove one electron from a gaseous atom in its ground state with first ionisation energy increasing across a period and decreasing down a group.