Chemistry - Atomic Structure Question with Solution | TestHub

ChemistryAtomic StructureMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

If $r_{1}$ is the radius of first orbit of hydrogen atom, then the radii of second, third and fourth orbits in terms of $r_{1}$ are

Options:

Answer:

Solution:

$r_{n} = \frac{n^{2}}{Z} (5.29 \times 1 0^{- 11} m)$
$Z = 1$ for H-atom
So $r_{1} = 5.29 \times 1 0^{- 11} m = 4 r_{1}$
$r_{2} = 4 \times 5.29 \times 1 0^{- 11} m = 4 r_{1}$
$r_{3} = 9 \times 5.29 \times 1 0^{- 11} m = 9 r_{1}$
$r_{4} = 16 \times 5.29 \times 1 0^{- 11} m = 16 r_{1}$

Stream:NTA_ABHYASSubject:ChemistryTopic:Atomic StructureSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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