Question

Write four characteristics of d-block elements ?​

Answer 1

Answer :-

Characteristics of d-block elements :-

1. They show variable oxidation state.

There is an increase in the number of common oxidation states at first to a maximum toward the middle of the table, and then there is a when we move from left to right across the first transition series.

2. They show high melting and boiling points.

This is due to the overlapping of (n-1)d orbitals and covalent bonding of the unpaired d orbital electrons.

3. They possess Metallic Nature.

As there is less number of electrons in the peripheral shell, all the transition elements are metals. They demonstrate the qualities of metals, such as ductility and malleability they are excellent conductors of electricity and heat.

4. The d block elements are highly denser than the s block elements.

Their densities gradually decrease from scandium to copper because of an irregular decrease in metallic radii and a relative increase in atomic mass.

The pattern of the ionic radius is same as that of the atomic radii pattern. Hence, for ions of a given charge, the ionic radius gradually decreases with an increment in atomic number.

Answer 2

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