Write general electronic configuration of transition elements and explain their following properties: [1+2+2=5]
(a) Magnetic property
(b) Catalytic property

**OR**

Explain preparation of potassium dichromate and write its ionic equation with the following:
(a) Iron
(b) H2S

Question

Write general electronic configuration of transition elements and explain their following properties: [1+2+2=5]
(a) Magnetic property
(b) Catalytic property

**OR**

Explain preparation of potassium dichromate and write its ionic equation with the following:
(a) Iron
(b) H2S

Accepted Answer

>

> [!TLDR]
> Transition elements have partly-filled d-orbitals in the general configuration $(n-1)d^{1-10}ns^{0-2}$, and this partly-filled d-subshell is directly responsible for both their magnetic behaviour and their catalytic activity.
>
> **General electronic configuration**
>
> Transition (d-block) elements are characterised by a partially filled $d$-subshell in the penultimate shell:
>
> $$(n-1)d^{1-10}\,ns^{0-2}$$
>
> For example, the first (3d) transition series has the general configuration $[Ar]3d^{1-10}4s^{1-2}$ (with some irregularities, e.g. Cr: $3d^54s^1$, Cu: $3d^{10}4s^1$, arising from the extra stability of half-filled and fully-filled d-subshells).
>
> **(a) Magnetic property**
> …

Q.Write general electronic configuration of transition elements and explain their following properties: [1+2+2=5]

Q.Write general electronic configuration of transition elements and explain their following properties: [1+2+2=5]

Q.Write general electronic configuration of transition elements and explain their following properties: [1+2+2=5]

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Q.Write general electronic configuration of transition elements and explain their following properties: [1+2+2=5]

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Unlock the full solution