1.

When electromagnetic radiation of wavelength 300 nm falls on the surface of sodium, electrons are emitted with a kinetic energy of 1.68×105Jmol−1. What is the minimum energy needed to remove an electron from sodium?

Answer»

When electromagnetic radiation of wavelength 300 nm falls on the surface of sodium, electrons are emitted with a kinetic energy of 1.68×105Jmol1. What is the minimum energy needed to remove an electron from sodium?



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