What is the energy of an electron in a helium ion (He+) in an energy l

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What is the energy of an electron in a helium ion (He+) in an energy level of n = 4? Use 2.18 × 10 −18 J for the Rydberg constant in joules (sometimes labeled Ry, R∞, or k). Report your answer in scientific notation. Your answer should be reported to three significant figures. Provide your answer below: J

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What is the energy of an electron in a helium ion

({H e}^{+})

in an energy level of

n = 4

Use $2.18 \times 10^{- 18} J$ for the Rydberg constant in joules (sometimes labeled $R y, R_{\infty}$ , or $k$ ).
Report your answer in scientific notation.
Your answer should be reported to three significant figures.