Question

How to find valence electrons of d block elements?

Answer 1

Answer:

elements of d block has varying oxidation state

Explanation:

so impossible to valence

Answer 2

The simplest answer is: d-block elements have number of valence electrons equal to their group number, which is equal to the number of electrons in the "valence shell". This works if you are using the definition of valence shell to be the outermost shell.