MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical 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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