Question
Which element gains three electrons to fill its outermost energy level?
(1 point)
MI
No
Lr
• Sulfur (S)
• Nitrogen (N)
• Calcium (Ca)
(1 point)
MI
No
Lr
• Sulfur (S)
• Nitrogen (N)
• Calcium (Ca)
Answers
GPT-4o mini
The element that gains three electrons to fill its outermost energy level is **Nitrogen (N)**.
Nitrogen has an atomic number of 7, meaning it has 5 electrons in its outermost energy level (2s² 2p³). To fill its valence shell (which can hold 8 electrons), nitrogen needs to gain 3 additional electrons.
The other elements listed do not gain three electrons to fill their outer levels. Sulfur (S) gains 2 electrons, while calcium (Ca) loses 2 electrons, and the elements MI (mendelevium), No (nobelium), and Lr (lawrencium) do not typically gain electrons in this manner.
Nitrogen has an atomic number of 7, meaning it has 5 electrons in its outermost energy level (2s² 2p³). To fill its valence shell (which can hold 8 electrons), nitrogen needs to gain 3 additional electrons.
The other elements listed do not gain three electrons to fill their outer levels. Sulfur (S) gains 2 electrons, while calcium (Ca) loses 2 electrons, and the elements MI (mendelevium), No (nobelium), and Lr (lawrencium) do not typically gain electrons in this manner.