A researcher records only the valence-region portion of the PES for an element Y
CHEMISTRY · Multi-part · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties
Problem
A researcher records only the valence-region portion of the PES for an element Y. The measured data are summarized below.
Valence-region peak
Binding energy (eV)
Relative area
1
61
2
2
24
6
3
9
1
No other peaks are observed in the valence region. Answer the questions that follow.
(a) For each peak, state the number of electrons represented and propose the most likely subshell assignment.
(b) Using your assignments from part (a), write the ground-state electron configuration for element Y in its entirety.
(c) Identify the group number of element Y on the periodic table and briefly explain how the spectrum supports your answer.