Electromagnetic radiation of wavelength 663 nm is just sufficient to ionise the atom of metal A. The...

Question

Electromagnetic radiation of wavelength 663 nm is just sufficient to ionise the atom of metal A. The ionization energy of metal A in kJ mol^ -1 is_______. (Rounded-off to the nearest integer) [h = 6.63 10^ -34 Js, c = 3.00 10^8ms^ -1 , N_A=6.02 10^ 23 mol^ -1 ]

Accepted Answer

180

JEE Main 2021 Chemistry question

Solution