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For Be³⁺ (Z=4), ΔE ≈ 2.903×10⁻¹⁸ J. λ ≈ 68.45 nm.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Quantum Numbers - Principal Azimuthal Magnetic Spin
ΔE ≈ 9.176×10⁻²⁰ J. ν ≈ 1.385×10¹⁴ Hz.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Quantum Mechanical Model - de Broglie Heisenberg and Schrodinger
E = hc/λ ≈ 4.847×10⁻¹⁹ J.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Discovery of Subatomic Particles - Electron Proton Neutron
Longest wavelength (lowest energy) for n=4 to n=3.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Developments Leading to Bohr Model - Electromagnetic Radiation and Spectrum
For B⁴⁺ (Z=5), ΔE = 71.4 eV. λ ≈ 17.41 nm.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Developments Leading to Bohr Model - Electromagnetic Radiation and Spectrum
E₂ = -5.45×10⁻¹⁹ J. ΔE = |E₂ - E₁| = 1.635×10⁻¹⁸ J.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Atomic Models - Thomson Rutherford and Bohr Model
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