What Wavelength of Light Removes an Electron from Tin?

[sami23]

What wavelength of light would be required to remove an electron from a gaseous atom of tin?

Here, I used Plank's constant h as 6.62*10^-34 J.s and Constant c as 3*10⁸ m/s

Also, energy needed to remove an electron is calculated by \DeltaE =hc/\lambda

I also used Broglie Eqn: \lambda = h/mv

The mass of Sn is 118.710 g. --> 0.11871 kg What is the mass of an electron of tin?

Can I use Broglie's Eqn and state that the wavelength required is:
6.62*10^-34 J.s / ((0.11871 kg)*(3*10⁸ m/s))

=1.86*10^-41 m

This doesn't seem right. Please help.

 

[Borek]

Masses are irrelevant, you will need ionisation energy.

No idea what you mean by "electron of tin". All electrons are identical.