Question

the complete electron configuration for cl is 1s² 1 2 3 4 the complete electron configuration for cl⁻¹ is 1s² 5 6 7 8 a. 1s⁰ b. 1s¹ c. 1s² d. 2s⁰ e. 2s¹ f. 2s² g. 2p⁰ h. 2p¹ i. 2p² j. 2p³ k. 2p⁴ l. 2p⁵ m. 2p⁶ n. 3s⁰ o. 3s¹ p. 3s² q. 3p⁰ r. 3p¹ s. 3p² t. 3p³ u. 3p⁴ v. 3p⁵ w. 3p⁶ x. 3p⁷

Explanation:

Step1: Determine electron - count of Cl

Chlorine (Cl) has 17 electrons. After 1s², fill 2s and 2p sub - shells. 2s can hold 2 electrons and 2p can hold 6 electrons. Then fill 3s and 3p.

Step2: Complete Cl electron configuration

After 1s², we have 15 electrons left. 2s² fills 2 electrons, then 2p⁶ fills 6 electrons, then 3s² fills 2 electrons, and finally 3p⁵ fills 5 electrons. So the electron configuration of Cl is 1s²2s²2p⁶3s²3p⁵.

Step3: Determine electron - count of Cl⁻

Cl⁻ has 18 electrons (17 for Cl + 1 extra electron). After 1s², the remaining 16 electrons fill 2s²2p⁶3s²3p⁶.

Answer:

1. F. 2s²
2. M. 2p⁶
3. P. 3s²
4. V. 3p⁵
5. F. 2s²
6. M. 2p⁶
7. P. 3s²
8. W. 3p⁶