3. What neutral element does this model represent?

Fluorine

Carbon

Oxygen

Nitrogen

Feedback:

Submit

4. A neutral element has four electrons in the 3rd energy level. What is the element?

Beryllium

Silicon

Argon

Sodium

Feedback:

Submit

5. In the diagram below, which electron would have the least amount of energy? Enter your answer in the box below.

Type Answer Here:

Correct! The electrons closest to the nucleus have the least amount of energy.

Try Again.

Submit

6. The diagram below shows the movement of the electron in a hydrogen atom.

At which stage in the diagram would light be emitted? Type Answer Here:

Correct! Light is emitted when energy is released and the electron falls from the excited state back to the ground state.

Try Again.

Submit