## Question

How many times does the electron go around the first Bohr orbit in one second?

### Solution

The frequency of the electron is given by

.

#### SIMILAR QUESTIONS

Which energy state of doubly ionized lithium (Li^{++}) has the same energy as that of the ground state of hydrogen? Given *Z* for lithium = 3.

The total energy of the electron in the first excited state of hydrogen is –3.4 eV. What is the kinetic energy of the electron in this state?

The energy of the electron of hydrogen orbiting in the stationary orbit of radius *r _{n}* is proportional to

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The electron orbits with principal quantum numbers *n* > 3 were not allowed, the number of possible elements would be