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What is the electronic configuration of the chloride ion (Cl-)?
What is the electronic configuration of the chloride ion (Cl-)?
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Practice Questions
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Q1
What is the electronic configuration of the chloride ion (Cl-)?
1s2 2s2 2p6 3s2 3p5
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p4
1s2 2s2 2p6 3s2 3p3
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Chloride ion has gained one electron, making its configuration 1s2 2s2 2p6 3s2 3p6.
Questions & Step-by-step Solutions
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Q
Q: What is the electronic configuration of the chloride ion (Cl-)?
Solution:
Chloride ion has gained one electron, making its configuration 1s2 2s2 2p6 3s2 3p6.
Steps: 5
Show Steps
Step 1: Understand that the chloride ion (Cl-) is formed when a chlorine atom gains one extra electron.
Step 2: Know the atomic number of chlorine (Cl) is 17, which means a neutral chlorine atom has 17 electrons.
Step 3: Write the electronic configuration for a neutral chlorine atom: 1s2 2s2 2p6 3s2 3p5.
Step 4: Since the chloride ion has gained one electron, add one more electron to the configuration.
Step 5: Update the configuration to reflect the extra electron: 1s2 2s2 2p6 3s2 3p6.
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