2. Complete the table. Work Function Work Function Frequenc Maximum KE of Metal Solids y Ejected electrons IJ in eV in Joules used /Hz Sodium 2.28 6 x 1014 Potassium 3.68 x 10-19 0.32 x 1019 Lithium 2.9 1х 1015 Aluminium 4.1 0.35 x 1019 Zinc 4.3 1.12 x 1019 Соpper 7.36 x 1019 1х 1015
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