All questions
AP Chemistry
1.7 Periodic Trends
BeginnerMCQConceptual18.5k
The valence electron configurations for three consecutive Period 3 elements are provided in the table below.

ElementAtomic numberValence electron configuration
\(\text{Mg}\)12\(3s^2\)
\(\text{Al}\)13\(3s^2 3p^1\)
\(\text{Si}\)14\(3s^2 3p^2\)

Which of the following correctly ranks the three elements in order of increasing first ionization energy?

Log In to Continue

Accounts are free! Log in to try this question, see explanations, save progress, and more!

Tools for a 5