What is the energy needed to raise an electron in the hydrogen atom from the second energy level to the third energy level ?

a.) 1.52x10^4 J b.) 3.6310^-19 J c.) 2.18x10^-19 J d.) 4.48x10^-9 J e.) 3.0310^-19J

Question

13-11-2014
Chemistry

Answered

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What is the energy needed to raise an electron in the hydrogen atom from the second energy level to the third energy level ?

a.) 1.52x10^4 J b.) 3.6310^-19 J c.) 2.18x10^-19 J d.) 4.48x10^-9 J e.) 3.0310^-19J

Sagot :

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Yipes Yipes · Answer 1 · 2014-11-14T15:50:45-05:00

Yipes Yipes

14-11-2014

[tex]\Delta E=|E_{2}-E_{3}|=|\frac{E_{1}}{4}-\frac{E_{1}}{9}|=|\frac{-13.9eV}{4}-\frac{-13.9eV}{9}|=\\\\ =|-3.475eV+1.544eV|=|-1,931eV|=1.931eV[/tex]

1eV --------- is ----------- 1.6*10⁻¹⁹J
1.931eV ---- is ----------- x

x = [1.931eV*1.6*10⁻¹⁹J]/1eV ≈ 3,1*10⁻¹⁹J

ANSWER E

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What is the energy needed to raise an electron in the hydrogen atom from the second energy level to the third energy level ?a.) 1.52x10^4 J b.) 3.63*10^-19 J c.) 2.18x10^-19 J d.) 4.48x10^-9 J e.) 3.03*10^-19J

Sagot :

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What is the energy needed to raise an electron in the hydrogen atom from the second energy level to the third energy level ?

a.) 1.52x10^4 J b.) 3.6310^-19 J c.) 2.18x10^-19 J d.) 4.48x10^-9 J e.) 3.0310^-19J