NEET Exam Model Paper 3

© examsiri.com

Question : 86 of 180

Marks: +1, -0

Lanthanoid contraction is caused due to:

The same effective nuclear charge from Ce to Lu
The imperfect shielding on outer electrons by 4f electrons from the nuclear charge
The appreciable shielding on outer electrons by 4f electrons from the nuclear charge
Since lanthanoids are rare earths

Go to Question:

Prev Question

Next Question