Question
Write the complete ground-state electron configuration of Ca²⁺.
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The electron configuration of an ion is determined by adding or subtracting electrons from electron configuration of the neutral atom. Cations are formed by removing electrons from the outermost shell. Anions are formed by the addition of electrons to the outermost shell.
For multi-digit superscripts or coefficients, use each number in succession.
Incorrect, 5 attempts remaining
The electron configuration of an ion is determined by adding or subtracting electrons from electron configuration of the neutral atom. Cations are formed by removing electrons from the outermost shell. Anions are formed by the addition of electrons to the outermost shell.
Answers
GPT-4o mini
To determine the ground-state electron configuration of the Ca²⁺ ion, we first start with the electron configuration of the neutral calcium (Ca) atom.
Calcium has an atomic number of 20, which means it has 20 electrons in its neutral state. The electron configuration of neutral calcium (Ca) is:
\[ \text{Ca: } 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 \]
When calcium loses two electrons to form the Ca²⁺ ion, those electrons are removed from the outermost shell, which in the case of Ca is the 4s subshell. Therefore, we remove the two 4s electrons:
The resulting electron configuration for Ca²⁺ is:
\[ \text{Ca}^{2+}: 1s^2 2s^2 2p^6 3s^2 3p^6 \]
We can summarize this in a more compact form as:
\[ \text{Ca}^{2+}: 1s^2 2s^2 2p^6 3s^2 3p^6 \]
This configuration represents the ground state for the calcium ion with a +2 charge.
Calcium has an atomic number of 20, which means it has 20 electrons in its neutral state. The electron configuration of neutral calcium (Ca) is:
\[ \text{Ca: } 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 \]
When calcium loses two electrons to form the Ca²⁺ ion, those electrons are removed from the outermost shell, which in the case of Ca is the 4s subshell. Therefore, we remove the two 4s electrons:
The resulting electron configuration for Ca²⁺ is:
\[ \text{Ca}^{2+}: 1s^2 2s^2 2p^6 3s^2 3p^6 \]
We can summarize this in a more compact form as:
\[ \text{Ca}^{2+}: 1s^2 2s^2 2p^6 3s^2 3p^6 \]
This configuration represents the ground state for the calcium ion with a +2 charge.