The d-block of the periodic table holds the groups:
- 3 to 12
- 1 and 2
- 13 to 18
- 4 and 5
Show answer and solution
Correct answer: A. 3 to 12
1. The d-block sits between the s-block and the p-block.
2. Its d orbitals fill progressively across each long period.
3. It runs from group 3 through group 12.
_Source: syllabus Chemistry Part I, Chapter 8, The d- and f-Block Elements._