A photoelectron spectrum of neutral magnesium shows a peak at the lowest binding…
CHEMISTRY · Single correct · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties
Problem
A photoelectron spectrum of neutral magnesium shows a peak at the lowest binding energy that corresponds to its 3s electrons. Which change will be observed in that region of the spectrum if the sample is replaced with singly ionized Mg⁺ ions?
(a) The peak’s height remains unchanged, but it shifts to a significantly higher binding energy.
(b) The peak’s height is reduced to approximately half its original value, while its position on the energy axis remains nearly the same.
(c) The peak’s height is reduced to approximately half its original value and it shifts to a significantly higher binding energy.
(d) The peak’s height doubles because the effective nuclear charge experienced by the remaining electrons increases.