NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- Classification of Elements and Periodicity in Properties
NEET · Chemistry · Classification of Elements and Periodicity in Properties
What is the seventh period (n = 7) known for?
What is the seventh period (n = 7) known for?
Options
- AFilling of 6s and 7p orbitals.
- BFilling of 4f and 5d orbitals.
- CFilling of 7s, 5f, 6d, and 7p orbitals.
- DFilling of 3d orbitals.
Correct answer
C. Filling of 7s, 5f, 6d, and 7p orbitals.
Step-by-step solution
The seventh period (n = 7) is similar to the sixth period with the successive filling up of the 7s, 5f, 6d and 7p orbitals and includes most of the man-made radioactive elements.