Electron Configuration Gizmo Answer Key Activity C //top\\ Jun 2026

What happens if you try to place an electron in the 3d orbital first?

Activity C introduces the (also known as the Aufbau principle's filling order), which dictates that electrons fill lower-energy subshells before moving to higher ones. A common "trick" students encounter in this activity is that the 4s subshell fills before the 3d subshell , despite 3 being a lower shell number than 4. Activity C Step-by-Step Walkthrough electron configuration gizmo answer key activity c

Answer: Decreases. (Explanation: If an atom is larger, the outer electrons are farther from the nucleus and are easier to remove.) What happens if you try to place an

Answer: They have the same number of electron shells (energy levels). (Explanation: Magnesium (Mg) and Sulfur (S) are both in Period 3. Magnesium’s configuration ends in 3s² and Sulfur’s ends in 3p⁴. Both have electrons in the 3rd energy level.) Activity C Step-by-Step Walkthrough Answer: Decreases

Answer: 7 valence electrons.