Test SeriesFree PYQsExamsPricing

NEET 2016 Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesNEET 2016

The electronic configurations of Eu (Atomic no. 63), Gd (Atomic No. 64) and Tb (Atomic No. 65) are:

Answer: (4)

Solution

Half-filled and fully-filled subshells are specially stable. Eu (63): (half-filled ). Gd (64): ]4f^75d^1$

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-091894