General electronic configuration of lanthanides is

⇦

⇨

General electronic configuration of lanthanides is

Options

(a) (n – 2) f¹⁻¹⁴ (n – 1) s²p⁶d⁰⁻¹ ns²
(b) (n – 2) f¹⁰⁻¹⁴ (n – 1) d⁰⁻¹ ns²
(c) (n – 2)f⁰⁻¹⁴ (n – 1)d¹⁰ ns²
(d) (n – 2) d⁰⁻¹ (n -I) f ¹⁻¹⁴ ns²

Correct Answer:

(n – 2) f¹⁻¹⁴ (n – 1) s²p⁶d⁰⁻¹ ns²

Explanation:

Lanthanides undergo Aufbau’s principle. The principle states that the electrons should be filled in the ground state first, next the excited state will be filled, so have lanthanide comes under F-block elements, Here 14 electrons can be filled from lowest energy levels to highest energy level. The general electronic configuration is (n-2) f⁽¹⁻¹⁴⁾ (n-1) s²p⁶d⁰⁻¹ n s².

Related Questions:

1. How much quick lime can be obtained from 25g of CaCO₃?
2. Which of the following has highest chlorine content
3. When 4g of iron is burnt to ferric oxide at constant pressure, 29.28 kJ of heat
4. Which one of the following is true in electrolytic refining
5. For a thermodynamically reversible reaction in a galvanic cell at temperature T,

Topics: D and F Block Elements (91)
Subject: Chemistry (2512)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends