Atom, Origin of Spectra: Bohr's Theory of Hydrogen Atom
ICSE · Class 12 · Physics
All formulas from Atom, Origin of Spectra: Bohr's Theory of Hydrogen Atom in ICSE Class 12 Physics. Key equations, constants, and identities for board exam preparation.
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Formulas
2. Alpha-Particle Scattering and Nuclear Size
N/t = constant, i.e. N1/N2 = t1/t2
N ∝ 1/sin^4(θ/2)
r0 = (1/4πε0)(2Ze^2/K)
b = Ze^2 cot(θ/2) / [4πε0(1/2 mv^2)] ⇒ b ∝ cot(θ/2)
4. Atomic Number, Mass Number, and Isotopes
N = A - Z
Z X A
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