AP Chemistryhardmcq1 pt
Which element has the highest first ionization energy?
A.Sodium
B.Magnesium
C.Aluminum
D.Neon
Neon is a noble gas with a complete valence shell, making it extremely difficult to remove an electron. It has the highest first ionization energy among the options.
DNeon
Practice more AP Chemistry questions with full explanations
Practice Unit 1: Atomic Structure and Properties Questions →