Two simplified photoelectron spectra for neutral atoms labeled X and Y are summarized…
CHEMISTRY · Single correct · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties
Problem
Two simplified photoelectron spectra for neutral atoms labeled X and Y are summarized below. For each peak, the number in parentheses indicates the number of electrons represented by that peak. Binding energies are on the same relative scale (larger value = electron more tightly bound).
Spectrum X
• Peak a 1070 (2)
• Peak b 70 (2)
• Peak c 35 (6)
• Peak d 5.1 (1)
Spectrum Y
• Peak a 1070 (2)
• Peak b 70 (2)
• Peak c 35 (6)
• Peak d 7.4 (2)
Both elements are in Period 3 of the periodic table. Which of the following correctly identifies X and Y?
(a) X=Mg,Y=Al
(b) X=Mg,Y=Na
(c) X=Na,Y=Mg
(d) X=Na,Y=Al