Question

What are the 2 fajan's rule​

Answer 1

Rule 1:

The first rule speaks about the polarising power of the cation. If the cation is smaller, then we can say that the volume of the ion is less. If the volume is less, we can conclude that the charge density of the ion would be high.

Since the charge density is high, the polarising power of the ion would be high. This makes the compound to be more covalent.

Rule 2:

The second rule speaks about the polarizability of the anion. Larger the anion, less is the effective nuclear charge that holds the valence electron of the ion in place. Since the last electron is loosely bound in large anions, it can easily be polarised by a cation, thereby making the compound more covalent.

Answer 2

Answer:

Sordy and Fajan's law states that,

1)When a parent nucleus emits an alpha particle, the mass number is less by 4 units and the atomic number is less by 2units than the mass number and atomic number Of The parent nucleus.

2)When a parent nucleus emits a beta particle, the mass number is the same and the atomic number is more by 1 unit than the parent nucleus

Explanation:

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