Question

What is the energy associated with 3rd energy shell of hydrogen atom?
(1) -2.18 10-18 J
(2) -0.342 × 10-19 J
(3) -0.726 * 10-18 J
(4) -2.42 * 10-19 J
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Answer 1

Answer:

(d) -2.42 × 10^-19 J

Explanation:

(d) -2.42 × 10^-19 J

Answer 2

The energy associated with 3rd energy shell of hydrogen atom is $-2.42\times 10^{-19}J$

Explanation:

Using Rydberg's Equation:

$E=-R_H\times \frac{1}{n^2}\times Z^2$

Where,

E =  energy of radiation

$R_H$ = Rydberg's Constant = $2.18\times 10^{-18}J$

n = energy level = 3

Z = atomic number (for hydrogen Z=1)

Putting the values, in above equation, we get

$E=-2.18\times 10^{-18}\times \frac{1}{3^2}\times 1^2$

$E=-2.42\times 10^{-19}J$

The energy associated with 3rd energy shell of hydrogen atom is $-2.42\times 10^{-19}J$

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