Question

Energy of an electron is given by E = -2.178 * 10^-18 J (z^2/n^2). Wavelength of light required to excite an electron in an hydrogen from level n = 1 to n = 2 will be (h = 6.62 * 10^-34 Js and c = 3.0 * 10^8 ms^-1) A.) = 1.124 * 10^-7m B.) = 2.816 *10^-7m C.) = 6.500*10^-7m D.) = 8.500*10^-7m

Answer 1

Answer:

E = -2.178 * 10^-18 J (z^2/n^2). Wavelength of light required to excite an electron in an hydrogen from level n = 1 to n = 2 will be (h = 6.62 * 10^-34 Js and c = 3.0 * 10^8 ms^-1) A.) = 1.124 * 10^-7m B.) = 2.816 *10^-7m C.) = 6.500*10^-7m D.) = 8.500*10^-7m

Explanation:

answer is 1.124 * 10^-7m B.) = 2.816 *10^-7m C.) = 6.500*10^-7m D.) = 8.500*10^-7m