Ions having same number of electrons are called isoelectronic ions.
Out of `Na^+` and Ne which has higher ionisation enthalpy. Explain why?

Ions having same number of electrons are called isoelectronic ions. Give example of 2 cations and 2 anions which are isoelectronic with argon.

Gallium has higher ionisation enthalpy than aluminium. Explain why?

K^+ and Ca^(2+) are isoelectronic with Argon. Out of Na^+ and Na which has smaller size and why?

Out of ethyl chloride and ethyl bromide, which has higher boiling point. why?

Which out of NH_3 and NF_3 has higher dipole moment and why?

Which has higher value for 1st ionisation enthalpy - oxygen or nitrogen. Why?

Which out of 'CH_3 F' and. 'CH_3 Cl' has a higher dipole moment and why?

Out of 'H-H' and 'Cl-Cl' bonds, which is expected to have higher bond enthalpy and why?

The energy released during the addition of an electron to an isolated neutral atom is called electron gain enthalpy. a) Explain how electron gain enthalpy differ from electronegativity. b) The second ionisation enthalpy of an element is always greater than the first ionisation enthalpy. Give reason.