Question

Which of the following is false? a) The ionic radius of a given cation increases with...

Which of the following is false?

a) The ionic radius of a given cation increases with an increase in the coordination number.

b) the covalent radius of an atom decreases with an increase in the bond order.

c) The atomic radius of elements always increases significantly down the group.

d) The size of anions is always greater than the corresponding neutral atom.

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Answer #1

Option C is false

Ionic radius increases with increasing coordination number, the electron cloud is drawn out by the presence of more surrounding ions.

Bond order and length are inversely proportional to each other: when bond order is increased, bond length is decreased.​ and radius decreses.

The atomic radius of elements always increases significantly down the group​: it is not correct because of lanthanide effect

The size of anions is always greater than the corresponding neutral atom.

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