Calculate the Radius of The $n = 4$ Bohr Orbit In $\mathrm { O } ^ { 7 + }$

question 129

Multiple Choice

Calculate the radius of the $n = 4$ Bohr orbit in $\mathrm { O } ^ { 7 + }$ (oxygen with 7 of its 8 electrons removed) . (for hydrogen, $r _ { 1 } = 0.0529 \mathrm {~nm}$ )

• A) \(85 \mathrm { pm }\)
• B) \(95 \mathrm { pm }\)
• C) \(74 \mathrm { pm }\)
• D) \(106 \mathrm { pm }\)

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