Question

Why do the d block elements form the coloured compounds

Answer 1

Answer:

answer

Explanation:

all the d block element has unfiilled electron on it's orbital.

so it can form coloured compound.

on the basis we can say that all the inert element

it does not contain unfilled electron so it will not form coloured compound.

I think this will help you.

please mark as brainlist.

Answer 2

Answer:

(1)Compounds (or ions) of many d-block elements or transition metals are coloured.

(2) This is due to the presence of one or more unpaircd electrons in (n-1) d-orbital. The transition metals have incompletely filled (n - 1 ) d -orbitals

3) The energy required to promote d-orbitals. one or more electróns within the d-orbitals involving d-d transitions is very low.

4)The onergy changes for d-d transitions lie in visible region of electromagnetic radiation.

5) Therefore transition metal ions absorb the radiation in the visible region and appear coloured.

(6) Colour of ions ot d-block elements depends on the number of unpaired electrons in (n-1)d orbital. The iong having equal number ot unpaired electrons have simlar colour

7) The colour of metal ions is complementary to the colour of the radiation absorbed.