Oxygen, with an atomic number of 8, is a neutral atom and has ________ electrons in the first electron shell and ________ electrons in the second electron shell.

Question

Quizplus · Accepted Answer

The first electron shell can hold up to 2 electrons and the second shell can hold up to 8 electrons. Therefore, oxygen with 8 electrons has 2 electrons in the first shell and 6 electrons in the second shell. Choice D is the only option that fits this configuration with 2 electrons in the first shell and 6 electrons in the second shell.

Oxygen, with an Atomic Number of 8, Is a Neutral