[Hint : Due to small size of F atom and compact 2p orbitals there are strong interelectronic repulsions in the relatively smaller 2p orbitals of fluorine. So the incoming electron does experience more repulsion in F than in Cl.]
Ionization enthalpy is the energy required to remove an electron from an isolated gaseous atom in its ground state. Although the atoms are widely separated in the gaseous state, there...
Answer: We have
The given redox reaction can be represented as:
Cl2(g) + So2(aq) + Cl-(aq) + So42-(aq)
The oxidation half reaction is:
S+4O2(aq) → S+6O42-(aq)
The oxidation number is balanced by adding two electrons as:
So2(aq) → ...
(c) The electron gain enthalpy order for halogens is Cl > F > Br > I Due to small size of fluorine the extra electron to be added feels more...
(i) This is due to smaller size of oxygen the electron cloud is distributed over a small region of space, making electron density high which repels the incoming electrons.
(ii) Because...
