What Wavelength of Light Removes an Electron from Tin?

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sami23
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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 [tex]\Delta[/tex]E =hc/[tex]\lambda[/tex]

I also used Broglie Eqn: [tex]\lambda[/tex] = 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.
 
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Masses are irrelevant, you will need ionisation energy.

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