Q15. Calculate the energy of an elctron in the first Bohr orbit of He+.
O -5.45*10^-19J
O 5.45*10^-19J
O-8.72*10^-18J
O 8.72*10^-18J
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Answer: (╯°□°）╯︵ ┻━┻
Explanation: that's awkward but thx
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