Energy of an electron in a given Bohr orbit of the hydrogen atom or He+ ion

1. A.
   $-0.436 \times 10^{-18}$ J
2. B.
   $-0.545 \times 10^{-18}$ J
3. C.
   $-0.242 \times 10^{-18}$ J
4. D.
   $-0.136 \times 10^{-18}$ J

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1. A.
   $-1.9\times10^{-18}\ \text{J}$
2. B.
   $-4.36\times10^{-18}\ \text{J}$
3. C.
   $-6.54\times10^{-18}\ \text{J}$
4. D.
   $-8.72\times10^{-18}\ \text{J}$

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1. A.
   $-2.18\times10^{-18}$ J
2. B.
   $-4.36\times10^{-18}$ J
3. C.
   $-6.54\times10^{-18}$ J
4. D.
   $-8.72\times10^{-18}$ J

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1. A.
   $- 4.8 \times 10^{- 19}\text{ }J$
2. B.
   $- 1.45 \times 10^{- 19}\text{ }J$
3. C.
   $\ - 19.36 \times 10^{- 19}\text{ }J$
4. D.
   $- 9.69 \times 10^{- 19}\text{ }J$

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1. A.
   $-2.18 \times 10^{-18}$ J
2. B.
   $-4.36 \times 10^{-18}$ J
3. C.
   $-0.545 \times 10^{-18}$ J
4. D.
   $-0.273 \times 10^{-18}$ J

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1. A.
   $-5.45 \times 10^{-19}$ J
2. B.
   $-2.40 \times 10^{-19}$ J
3. C.
   $-4.35 \times 10^{-18}$ J
4. D.
   $-6.70 \times 10^{-18}$ J

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1. A.
   $-\dfrac{E}{2}$ J
2. B.
   $-\dfrac{E}{4}$ J
3. C.
   $-\dfrac{E}{9}$ J
4. D.
   $-\dfrac{E}{16}$ J

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