Posted by **Kat** on Sunday, April 4, 2010 at 10:46am.

In a hydrogen atom, if the radius of the orbit of the electron is doubled, then its energy will ...

>> Increase by a factor of 2??

- Physics -
**drwls**, Sunday, April 4, 2010 at 12:26pm
The radius of a Bohr orbit increases with the square of the quantum number, n. So the principal quantum number would have to increase by a factor of sqrt2. This will not be possible since the quantum number must remain an integer.

Your teacher may not be aware of this.

In general, the total energy of a Bohr orbit becomes larger (less nagative) when the radius of the orbit increases. A totally detached electron (infinite radius) has an energy of zero.

- Physics -
**Kat**, Sunday, April 4, 2010 at 10:51pm
Actually "Actually, it is not possible for the radius of the orbit to double"

is one of the options, so is that right for the reason you stated?

## Answer this Question

## Related Questions

- physics - In a hydrogen atom, if the radius of the orbit of the electron is ...
- physics - The hydrogen atom consists of a proton with an electron in orbit about...
- Physics - In the hydrogen atom the radius of orbit B is sixteen times greater ...
- physics - 1.A spherical bowl(R = 20 cm) contains water(n = 1.33) and your pet ...
- Physics - A hydrogen atom is in its third excited state (n=4). Using Bohr theory...
- physics - (a) A hydrogen atom has its electron in the n = 5 level. The radius of...
- physics - ) A hydrogen atom has its electron in the n = 5 level. The radius of ...
- Physics - Please help me answer the question below and also show equations and ...
- physics - Please help me answer the question below and also show equations and ...
- Physics - In one model of the hydrogen atom, the electron revolves in a ...