# Difference between Rutherford and Bohr's theory of atom

## Homework Statement

The difference between Rutherford's and Bohr's theory of atom is ...

A. Bohr's spectrum of hydrogen atom is discrete while Rutherford's continuous
B. Bohr's stated electron goes around the nucleon while radiating energy, while Rutherford's not radiating energy.
C. Bohr's electron travels in stationary path while Rutherford's parabolic path
D. Bohr's stated stationary path has no energy, while Rutherford's path has energy
E. Bohr's electron can't switch its path, while Rutherford's electron can switch its path

No equation

## The Attempt at a Solution

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It seems that A and C is correct, right ?
I'm confused

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What is a "stationary path" ? Can you find any reference that cites Rutherford's belief that electrons travel in "parabolic paths" ? :-)

What is a "stationary path" ? Can you find any reference that cites Rutherford's belief that electrons travel in "parabolic paths" ? :-)
Stationary path means that the electron will not "absorbed" into the nucleon. I mean the electron will not lose its energy.
So, Rutherford didn't say that the electron travels in parabolic paths?
Hmm...
Yes, you're right. Electron travels in spiral not parabolic path

Okay, I think the answer is A. Thank you

A. Bohr's spectrum of hydrogen atom is discrete while Rutherford's continuous, can be called as correct and other statements contain such terms and statements which neither Rutherford nor Bohr can think of. only a test-maker who had to some how produce a multiple choice test item.

In Bohr's semi quantum approach, electron is supposed to travel in a circular path and in Rutherford's theory which is completely classical the electron will spiral into the nucleus. Spiral is a circle of continually decreasing radius.