Midterm 2 - Question 4 | General Chemistry 1

General Chemistry 1 - Midterm 2

1) The longest wavelength of light that causes electrons to be ejected from the surface of a copper plate is 253 nm. What is the threshold frequency of the copper plate knowing that melectron = 9.109 x 10-25 mg?

2) If light with a wavelength of 260 nm shines on the copper plate, will electrons be ejected from the copper atoms? Explain.