Question

Calculate the energy associated with the first orbit of He+ what is the radius of the orbit?

Answer 1

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Answer 2

Explanation:

We know that,

$\underline{\boxed{\sf E_n=-2.18×10^{-18}×\dfrac{Z^2}{n^2}J}}$

• $\sf n=1$
• $\sf Z=2$

$\sf E_1=-2.18×10^{-18}×2^2 \: J$

$\sf E_1=-2.18×10^{-18}×4 \: J$

$\sf E_1= \bf -8.72×10^{-18}\: J$

We know that,

$\underline{\boxed{\sf r_n=0.0529×\dfrac{n^2}{Z}\: nm}}$

• $\sf n=1$
• $\sf Z=2$

$\sf r_n = \dfrac{0.0529}{2} \: nm$

$\sf r_n = \bf 0.02645 \: nm$