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Bohr model of Hydrogen spectrum

Energy of an electron is given by E=-2.178 10^{-18} {~J}({Z^{

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Energy of an electron is given by $E = - 2.178 \times 1 0^{- 18} J (\frac{Z ^{2}}{n ^{2}})$ . Wavelength of light required to excite an electron in an hydrogen atom from level $n = 1$ to $n = 2$ will be $(h = 6.62 \times 1 0^{- 34} Js$ and $c = 3.0 \times 1 0^{8} ms^{- 1})$

1.214 \times 1 0^{- 7} m

2.816 \times 1 0^{- 7} m

6.500 \times 1 0^{- 7} m

8.500 \times 1 0^{- 7} m

Views: 5,837 students

Updated on: Jul 12, 2023

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2013

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Michael Discussed

Energy of an electron is given by

E = - 2.178 \times 1 0^{- 18} J (\frac{Z ^{2}}{n ^{2}})

. Wavelength of light required to excite an electron in an hydrogen atom from level

n = 1

n = 2

will be

(h = 6.62 \times 1 0^{- 34} Js

and

c = 3.0 \times 1 0^{8} ms^{- 1})

12 mins ago

Discuss this question LIVE

12 mins ago

Text solutionVerified

Energy change

Δ E = 2.178 \times 1 0^{- 18} (\frac{1}{1 ^{2}} - \frac{1}{2 ^{2}}) = \frac{h c}{λ}

= 2.178 \times 1 0^{- 18} (\frac{1}{1 ^{2}} - \frac{1}{2 ^{2}})

= \frac{6.62 \times 1 0 ^{- 34} \times 3.0 \times 1 0 ^{8}}{λ}

∴ λ \approx 1.214 \times 1 0^{- 7} m

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Question Text	Energy of an electron is given by $E = - 2.178 \times 1 0^{- 18} J (\frac{Z ^{2}}{n ^{2}})$ . Wavelength of light required to excite an electron in an hydrogen atom from level $n = 1$ to $n = 2$ will be $(h = 6.62 \times 1 0^{- 34} Js$ and $c = 3.0 \times 1 0^{8} ms^{- 1})$
Updated On	Jul 12, 2023
Topic	Structure of Atom
Subject	Chemistry
Class	Class 11
Answer Type	Text solution:1 Video solution: 8
Upvotes	912
Avg. Video Duration	7 min

Energy of an electron is given by $E = - 2.178 \times 1 0^{- 18} J (\frac{Z ^{2}}{n ^{2}})$ . Wavelength of light required to excite an electron in an hydrogen atom from level $n = 1$ to $n = 2$ will be $(h = 6.62 \times 1 0^{- 34} Js$ and $c = 3.0 \times 1 0^{8} ms^{- 1})$

Text solutionVerified

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Energy of an electron is given by E=−2.178×10−18 J(n2Z2​). Wavelength of light required to excite an electron in an hydrogen atom from level n=1 to n=2 will be (h=6.62×10−34Js and c=3.0×108 ms−1)

Text solutionVerified

Filo tutor solutions (8)

Questions from JEE Mains 2013 - PYQs

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Energy of an electron is given by $E = - 2.178 \times 1 0^{- 18} J (\frac{Z ^{2}}{n ^{2}})$ . Wavelength of light required to excite an electron in an hydrogen atom from level $n = 1$ to $n = 2$ will be $(h = 6.62 \times 1 0^{- 34} Js$ and $c = 3.0 \times 1 0^{8} ms^{- 1})$