Question

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1. identify the number of electrons in the outermost energy level of the oxygen atom.

Explanation:

Step1: Recall oxygen's atomic number

Oxygen has an atomic number of 8.

Step2: Determine electron - shell configuration

The electron - shell configuration of oxygen is 2, 6. The first shell can hold 2 electrons and the second (outermost) shell holds 6 electrons.

Answer:

6