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JEE Main 20258 AprilEvening Shift

Exam: JEE Main
Year: 2025
Date: 8 April
Shift: Evening Shift
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

JEE Main 2025 · 8 April · Evening Shift · Chemistry · Classification of Elements and Periodicity in Properties

The atomic number of the element from the following with lowest 1^...

The atomic number of the element from the following with lowest

1^{\text{st }}

ionisation enthalpy is : The atomic number of the element from the following with lowest 1^ st ionisation enthalpy is :

The atomic number of the element from the following with lowest 1^ st ionisation enthalpy is :

Options

A $32$
B $35$
C $87$
D $19$

Correct answer

C. $87$

Step-by-step solution

The atomic number of the element from the following with lowest 1^ st ionisation enthalpy is :

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