Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) The transition elements vary widely in their chemical behaviour. Many of them are sufficiently electropositive to dissolve in mineral acids, although a few are noble of the first series, except copper, all the metals are relatively reactive. Transition elements show variable valency due to - Sarthaks eConnect

The transition elements vary widely in their chemical behaviour. Many of them are sufficiently electropositive to dissolve in mineral acids, although a few are noble of the first series, except copper, all the metals are relatively reactive. Transition elements show variable valency due to

The transition elements vary widely in their chemical behaviour. Many of them are sufficiently electropositive to dissolve in mineral acids, although a few are noble of the first series, except copper, all the metals are relatively reactive. Transition elements show variable valency due to

A.

small size

B.

large charge

C.

presence of incompletes filled d-electrons

D.

all of these

Solution

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Best answer

Due to presence of incomplete filled d-electrons it show variable valency. Hence, it can extend its valency.