The Kinetic Energy of an Electron in a Bohr Orbit

question 43

Multiple Choice

The kinetic energy of an electron in a Bohr orbit of the hydrogen atom is 8.57 × 10^-20 J. What is the radius of the orbit?

• A) 1.35 × 10^-9 m
• B) 2.01 × 10^-9 m
• C) 2.64 × 10^-9 m
• D) 4.12 × 10^-9 m
• E) 5.29 × 10^-11 m

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