WBJEE · Chemistry · Structure of Atom
The atomic number of cerium \((\mathrm{Ce})\) is 58 . The correct electronic confipuration of \(\mathrm{Ce}^{3+}\) ion is
- A \([\mathrm{Xe}] 4 f^{1}\)
- B \([\mathrm{Kr}] 4 f^{1}\)
- C \([\mathrm{Xe}] 4 f^{13}\)
- D \([\mathrm{Kr}] 4 d^{1}\)
Answer & Solution
Correct Answer
(A) \([\mathrm{Xe}] 4 f^{1}\)
Step-by-step Solution
Detailed explanation
Atomic number of cerium \(=58\) Electronic configuration of Ce \[ =[\mathrm{Xe}] 4 f^{2}, 5 d^{0}, 6 s^{2} \] Electronic configuration of \(\mathrm{Ce}^{3+}\) \[ =[\mathrm{Xe}] 4 f^{1} \]
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The number of \(\sigma\) and \(\pi\) bonds between two carbon atoms in calcium carbide areWBJEE 2016 Easy
- For spontaneous polymerization, which of the following is (are) correct?WBJEE 2020 Easy
- The decreasing order of reactivity of the following alkenes towards HBr addition is
WBJEE 2024 Medium - The reduction potential of hydrogen half-cell will be negative ifWBJEE 2021 Medium
- During the emission of a positron from a nucleus, the mass number of the daughter element remains the same but the atomic numberWBJEE 2014 Easy
- At a particular temperature. the ratio of equivalent conductance to specific conductance of a 0.01 N NaCl solution isWBJEE 2015 Easy
More PYQs from WBJEE
- If \(\left|\begin{array}{ccc}a^{2} & b c & c^{2}+a c \\ a^{2}+a b & b^{2} & c a \\ a b & b^{2}+b c & c^{2}\end{array}\right|=k a^{2} b^{2} c^{2}\), then \(k=\)WBJEE 2020 Medium
- The dimension of the universal constant of gravitation, \(G\) isWBJEE 2017 Easy
-
Three blocks are pushed with a force \(\mathrm{F}\) across a frictionless table as shown in figure. Let \(\mathrm{N}_{1}\) be the contact force between the left two blocks and \(\mathrm{N}_{2}\) be the contact force between the right two blocks. ThenWBJEE 2021 Easy - Let \(f: R \rightarrow R\) be twice continuously differentiable. Let \(f(0)=f(1)=f^{\prime}(0)=0 .\) Then,WBJEE 2017 Easy
- How many moles of electrons will weigh one kilogram?WBJEE 2018 Hard
- Two cells \(A\) and \(B\) of emf \(2 \mathrm{V}\) and \(1.5 \mathrm{V}\) respectively, are connected as shown in figure through an external resistance \(10 \Omega\) The internal resistance of each cell is \(5 \Omega\). The potential difference \(E_{A}\) and \(E_{B}\) across the terminals of the cells \(A\) and \(B\) respectively are
WBJEE 2015 Medium