Many Gizmo activities end with a summary paragraph. Here are the typical missing words:
: Electrons fill the lowest energy subshells first. electron configuration gizmo answer key activity c
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.) Many Gizmo activities end with a summary paragraph