Question 1
A possible set of quantum numbers to describe an electron in a 5p subshell is
◦ n = 5,
l = 2, m
l = 2 , m
s= +1/2
◦ n = 4,
l = 0, m
l = 0, m
s= - 1/2
◦ n = 5,
l = 0, m
l = 0, m
s= +1/2
◦ n = 3,
l = 1, m
l = 1, m
s= - 1/2
◦ n = 5,
l = 1, m
l = 0, m
s= +1/2
Question 2
A proton is roughly 1800 times more massive than an electron. If a proton and an electron are traveling at the same speed,
◦ the wavelength of the photon will be about 1800 times longer than the wavelength of the electron.
◦ the wavelength of the photon will be about

times longer than the wavelength of the electron.
◦ the wavelength of the photon will be roughly equal to the wavelength of the electron.
◦ the wavelength of the electron will be about

times longer than the wavelength of the photon.
◦ the wavelength of the electron will be about 1800 times longer than the wavelength of the photon.