Question:
Which one of the following first row transition elements is expected to have the highest third ionization enthalpy?
Which one of the following first row transition elements is expected to have the highest third ionization enthalpy?
Show Hint
For transition elements, the ionization enthalpy increases across the period due to increased nuclear charge and stability of electronic configurations.
Updated On: Mar 6, 2025
- Iron (Z = 26)
- Manganese (Z = 25)
- Chromium (Z = 24)
- Vanadium (Z = 23)
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
The third ionization enthalpy of transition elements increases as we move across the period due to increasing nuclear charge. Manganese has a half-filled d-subshell configuration, making it relatively stable and requiring more energy to remove the third electron. Hence, Manganese (Z = 25) has the highest third ionization enthalpy.
Was this answer helpful?
1
0
Top Questions on Periodic properties
- An element 'E' has the ionisation enthalpy value of 374 kJ mol\(^{-1}\). 'E' reacts with elements A, B, C, and D with electron gain enthalpy values of \( -328 \), \( -349 \), \( -325 \), and \( -295 \) kJ mol\(^{-1}\), respectively. The correct order of the products EA, EB, EC, and ED in terms of ionic character is:
- JEE Main - 2025
- Chemistry
- Periodic properties
For the reaction, \[ H_2(g) + I_2(g) \rightleftharpoons 2HI(g) \]
Attainment of equilibrium is predicted correctly by:
- JEE Main - 2025
- Chemistry
- Periodic properties
- Consider the following elements In, Tl, Al, Pb, and Ge. The most stable oxidation states of elements with highest and lowest first ionisation enthalpies, respectively, are:
- JEE Main - 2025
- Chemistry
- Periodic properties
- What is Lanthanoid contraction?
- CBSE CLASS XII - 2024
- Chemistry
- Periodic properties
- Assertion (A): Separation of Zr and Hf is difficult.
Reason (R): Zr and Hf have similar radii due to lanthanoid contraction.- CBSE CLASS XII - 2024
- Chemistry
- Periodic properties
View More Questions
Questions Asked in CBSE CLASS XII exam
- Find the image \( A' \) of the point \( A(2,1,2) \) in the line \[ l: \mathbf{r} = 4\hat{i} + 2\hat{j} + 2\hat{k} + \lambda (\hat{i} - \hat{j} - \hat{k}). \] Also, find the equation of the line joining \( A A' \). Find the foot of the perpendicular from point \( A \) on the line \( l \).
- Solve the following linear programming problem graphically: \[ \text{Minimise } Z = 2x + y \] subject to the constraints: \[ 3x + y \geq 9, \] \[ x + y \geq 7, \] \[ x + 2y \geq 8, \] \[ x, y \geq 0. \]
- CBSE CLASS XII - 2025
- Linear Programming Problem
- A die with numbers 1 to 6 is biased such that \( P(2) = \frac{3}{10} \) and the probability of other numbers is equal. Find the mean of the number of times number 2 appears on the die, if the die is thrown twice.
- CBSE CLASS XII - 2025
- Probability
- Solve the differential equation \( 2(y + 3) - xy \frac{dy}{dx} = 0 \); given \( y(1) = -2 \).
- CBSE CLASS XII - 2025
- Differential Equations
- A school is organizing a debate competition with participants as speakers and judges. \[ S = \{S_1, S_2, S_3, S_4\} \] where \(S = \{S_1, S_2, S_3, S_4\}\) represents the set of speakers. The judges are represented by the set: \[ J = \{J_1, J_2, J_3\} \] where \(J = \{J_1, J_2, J_3\}\) represents the set of judges. Each speaker can be assigned only one judge. Let \(R\) be a relation from set \(S\) to \(J\) defined as: \[ R = \{(x, y) : \text{speaker } x \text{ is judged by judge } y, x \in S, y \in J\} \]
- CBSE CLASS XII - 2025
- Relations and Functions
View More Questions