Exams › NEET › Chemistry

If ionization potential for hydrogen atom is 13.6 eV, then ionization potential for He⁺ will be:

1. 54.4 eV
2. 6.8 eV
3. 13.6 eV
4. 24.5 eV

Correct answer: 54.4 eV

Solution

The ionization potential is proportional to the square of the nuclear charge (Z²). For He⁺, Z = 2, so the ionization potential is 13.6 × 2² = 54.4 eV.

Related NEET Chemistry questions

• Protons and neutrons are also called
• From the \( \alpha \) -particle scattering experiment, Rutherford concluded that: This question has multiple correct options
• Which of following was not explained by Rutherford?
• The energy of an electron in the ground state of \( \boldsymbol{H} \) atom is \( -\mathbf{1 3 . 6 e V} \) The negative sign indicates that:
• Outer electronic configuration of Cl⁻ is:
• The sub-shell with lowest value of (n + l) is filled up first. When two or more sub-shells have the same (n + l) value, the sub-shell with lowest value of 'n' is filled up first. Therefore, the correct order is:

⚔️ Practice NEET Chemistry free + battle 1v1 →