Most of the lanthanides are coloured due to presence of unpaired electrons, which undergo

Question

Most of the lanthanides are coloured due to presence of unpaired electrons, which undergo (A) d-d transition (B) d - f transition (C) f -f transition (D) none of these.

Tardigrade Admin · Accepted Answer

The colour of Lanthanoids and Actinoids is due to f - f transitions. When one or more unpaired electrons are present in the forbital, light in the visible region is absorbed which results in f-f transition and colour.

Q. Most of the lanthanides are coloured due to presence of unpaired electrons, which undergo

$d - d$ transition

$d$ - $f$ transition

$f$ - $f$ transition

none of these.

The colour of Lanthanoids and Actinoids is due to $f - f$ transitions. When one or more unpaired electrons are present in the forbital, light in the visible region is absorbed which results in f-f transition and colour.

Q. Most of the lanthanides are coloured due to presence of unpaired electrons, which undergo

d−d transition

d - f transition

f -f transition

none of these.

The colour of Lanthanoids and Actinoids is due to f−f transitions. When one or more unpaired electrons are present in the forbital, light in the visible region is absorbed which results in f-f transition and colour.

$d - d$ transition

$d$ - $f$ transition

$f$ - $f$ transition

The colour of Lanthanoids and Actinoids is due to $f - f$ transitions. When one or more unpaired electrons are present in the forbital, light in the visible region is absorbed which results in f-f transition and colour.