The d-block is marked by the filling of:

Question

Accepted Answer

B. Inner d orbitals

1. Each block is named for the orbital being filled.
2. In these elements the inner d orbitals take the electrons.
3. That is why they are called the d-block elements.
_Source: syllabus Chemistry Part I, Chapter 3, Classification of Elements and Periodicity in Properties._

Answer

Outer s orbitals

Answer

Outer p orbitals

Answer

Inner f orbitals

The d-block is marked by the filling of:

Keep practising Atomic Structure and Valency