MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryAtomic StructureIntro
The velocity of an electron in the second shell of hydrogen atom is
0.10.94 × 10⁶ m s⁻¹
1.18.88 × 10⁶ m s⁻¹
2.1.888 × 10⁶ m s⁻¹
3.1.094 × 10⁶ m s⁻¹
Explanation
v = 2.188 × 10⁶ × Z/n m/s. For H (Z=1), n=2: v = 2.188 × 10⁶/2 = 1.094 × 10⁶ m s⁻¹
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