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JEE Main 201219 MayOnline

Exam: JEE Main
Year: 2012
Date: 19 May
Mode: Online
Subject: Physics
Chapter: Atomic Physics

JEE Main 2012 · 19 May · Online · Physics · Atomic Physics

Ionisation energy of Li (Lithium) atom in ground state is 5.4 eV ....

Ionisation energy of Li (Lithium) atom in ground state is

5.4 \mathrm{eV}

. Binding energy of an electron in

\mathrm{Li}^{+}

ion in ground state is

75.6 \mathrm{eV}

. Energy required to remove all three electrons of Lithium (Li) atom is

Options

A $81.0 \mathrm{eV}$
B $135.4 \mathrm{eV}$
C $203.4 \mathrm{eV}$
D $156.6 \mathrm{eV}$

Correct answer

D. $156.6 \mathrm{eV}$

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