Chemistry Help. Find the wavelengths .?

Posted on 2015-11-17 07:16:00 in Chemistry by MICCY

1 Kinetic energy of electron lies around 1.59E-19 and 1.61E-19, what is the smallest distance within it can be known to lie?

2. Energy needed to ioninze atom of element X when stable state is 500 kJ/mil. But, if atom X is in lowest state and only 120kJ/mol needed to ionize it. What is the wavelength of the radiation emitted when it goes from low state to ground state?

3. It takes 258 kJ/mol to eject electrons from metal surface. What is the longest wavelength of light that can be used to eject electrons from the surface?

Can you please include any equations and conversions you used.

---

Answer Comment

No Answers Posted Yet.