which of the following atoms has a stronger ionization energy? lithium li oxygen o carbon c

Answer:

B. Oxygen O

Explanation:

Step1: Recall ionization - energy trend

Ionization energy increases across a period.

Step2: Locate elements in periodic table

Lithium (Li) is in group 1, period 2; Carbon (C) is in group 14, period 2; Oxygen (O) is in group 16, period 2.

Step3: Compare ionization energies

Since they are in the same period, and ionization energy increases from left - to - right across a period, oxygen has the highest ionization energy among them as it is further to the right compared to lithium and carbon.