Multiple choice Which of the following elements is not correctly matched with its work function? Platinum: 6.2 eV Chromium: 4.52 eV Zinc: 2.3 eV Potassium: 2.26 eV Tungsten: 4.52 eV Reveal answer Fill a bubble to check yourself C Correct answer Explanation The work function of zinc is 4.24 eV.