The number of d-electrons in Fe²⁺(Z=26) is not equal to the number of electrons

⇦

⇨

The number of d-electrons in Fe²⁺(Z=26) is not equal to the number of electrons in which one of the following

Options

(a) p-electrons in Cl(Z=17)
(b) d-electrons in Fe(Z=26)
(c) p-electrons in Ne(Z=10)
(d) s-electrons in Mg(Z=12)

Correct Answer:

p-electrons in Cl(Z=17)

Explanation:

Fe⁺²=3d⁶(number of ‘d’ electrons =6)
In Cl = 1s² 2s² 2p⁶ 3s² 3p⁵
total p electrons =11 which are not equal to number of d electrons in Fe⁺²
p-electrons in Ne =1s² 2s² 2p⁶=6
s-electrons in Mg=1s² 2s² 2p⁶ 3s² =6.

Related Questions:

1. On treating a mixture of two alkyl halides with sodium metal in dry ether,
2. The solubility of BaSO₄, in water, is 2.33 ˣ 10⁻³ g/L.Its solubility product
3. Allergy is the state in which a person experiences
4. Among the following the least thermally stable is
5. H₂S₂O₇ has a commercial name as

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