A gaseous sample contains sodium and magnesium atoms
CHEMISTRY · Subjective · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties
Problem
A gaseous sample contains sodium and magnesium atoms. The composite photoelectron spectrum shows two closely spaced low-binding-energy peaks:
• Peak P: 0.50 eV, relative height = 1
• Peak Q: 0.60 eV, relative height = 2
Indicate which peak (P or Q) corresponds to the valence electrons of magnesium and explain your reasoning in one sentence.