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What is the value of the principal quantum number (n) for the outermost electron
What is the value of the principal quantum number (n) for the outermost electrons in a sodium atom?
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What is the value of the principal quantum number (n) for the outermost electrons in a sodium atom?
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Sodium has an atomic number of 11, and its electron configuration is 1s² 2s² 2p⁶ 3s¹. The outermost electrons are in n=3.
Questions & Step-by-step Solutions
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Q
Q: What is the value of the principal quantum number (n) for the outermost electrons in a sodium atom?
Solution:
Sodium has an atomic number of 11, and its electron configuration is 1s² 2s² 2p⁶ 3s¹. The outermost electrons are in n=3.
Steps: 4
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Step 1: Identify the atomic number of sodium, which is 11.
Step 2: Write the electron configuration for sodium, which is 1s² 2s² 2p⁶ 3s¹.
Step 3: Look at the highest energy level in the electron configuration, which is 3s.
Step 4: Determine the principal quantum number (n) for the outermost electrons, which corresponds to the highest energy level, n=3.
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