List the following atoms in order of increasing ionization energy: Li,Na,C,O,F.
A)Li

Question

List the following atoms in order of increasing ionization energy: Li,Na,C,O,F.
A)Li < Na < C < O < F
B)Na < Li < C < O < F
C)F < O < C < Li < Na
D)Na < Li < F < O < C
E)Na < Li < C < F < O

Quizplus · Accepted Answer

Ionization energy generally increases across a period (from left to right) and decreases down a group (from top to bottom) in the periodic table. Thus, Na (being lower in the same group) has a lower ionization energy than Li, and as we move from C to O to F across the period, the ionization energy increases.

List the Following Atoms in Order of Increasing Ionization Energy