Multiple Choice
The electron in a hydrogen atom has an orbital radius of 0.0500 nm. To avoid being pulled into the nucleus by electrostatic attraction, the electron must have an orbital speed of
A) 7.12 km/s.
B) 25.2 km/s.
C) 1.02 × 106 m/s.
D) 2.25 × 106 m/s.
E) 5.0 × 108 m/s.
Correct Answer:

Verified
Correct Answer:
Verified
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