Needs a minimum of 2164 kjmol to remove an electron from a, Chemistry

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Needs a minimum of 2164 kjmol to remove an electron from a

Needs a minimum of 216.4 kJ/mol to remove an electron from a potassium metal surface. If UV lights at 227 nm strikes this surface, explain what is the maximum speed (in m/s) of the ejected electrons? (in m/s.)

Microwave ovens use radiation whose wavelength is 12.5 cm.

Explain what is the frequency (Hz) of this radiation? 23.98E8 Hz

Explain what is the energy in kJ/mol of this radiation?

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Chemistry: Needs a minimum of 2164 kjmol to remove an electron from a

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