JEE Main 2021 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 22 July 2021, Shift 2, Chemistry Q53

Question 53 of 90 in this shift, Chemistry question 23 of 30, Section B.

Number of electrons that Vanadium (Z=23) has in p-orbitals is equal to ________.

Official answer

NTA final key.

Chapter: Structure of Atom
Topic: Quantum Numbers
Idea tested: Aufbau Principle and n+l Rule

Same idea in other shifts

Asked 8× in all

4 Apr 2026, Shift 1 · Q53Which of the following is correct set of $4$ quantum numbers of $19^{\text{th}}$ electron in Chromium (Atomic number $=24$ ) in accordance…MediumSingle correct
5 Apr 2026, Shift 1 · Q52Arrange the following atomic orbitals of multi electron atoms in order of increasing energy. A. $n = 3, l = 2, m = +1$ B.…MediumOther
5 Apr 2026, Shift 2 · Q52Which of the following statement(s) is/are true ? A. If two orbitals have the same value of $(n+l)$ , the orbital with lower value of n…MediumOther
9 Apr 2024, Shift 1 · Q61Compare the energies of following sets of quantum numbers for multielectron system. (A) $n=4, l=1$ (B) $n=4, l=2$ (C) $n=3, l=1$ (D)…EasySingle correct
27 Jul 2022, Shift 2 · Q61The correct decreasing order of energy for the orbitals having, following set of quantum numbers : (A) $n=3$ , $l=0$ , $m=0$ (B) $n=4$ ,…EasySingle correct
29 Jul 2022, Shift 2 · Q62Given below are the quantum numbers for 4 electrons. A. $n = 3, l = 2, m_l = 1, m_s = +1/2$ B. $n = 4, l = 1, m_l = 0, m_s = +1/2$ C.…MediumSingle correct
5 Sep 2020, Shift 1 · Q33In the sixth period, the orbitals that are filled are :EasySingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.