How many valence electrons are there in the valence shell of sodium, Na (atomic number 11)?

A. three
B. on...

Question

How many valence electrons are there in the valence shell of sodium, Na (atomic number 11)?

A. three
B. one
C. two
D. four

CramX · Accepted Answer

Step 1: I'll solve this step-by-step following the specified LaTeX and formatting guidelines:. Step 2: : Determine the electron configuration of sodium. - Sodium's atomic number is 11, which means it has 11 total electrons Step 3: : Identify the valence electrons. - Valence electrons are the electrons in the outermost shell - For sodium, these are the electrons in the 3s orbital Step 4: : Verify the number of valence electrons. - This matches the electron configuration $3s^{1}$ Final Answer: Explanation: Sodium (Na) has one valence electron in its 3s orbital, which determines its chemical behavior and ability to form bonds. This single valence electron is easily lost, making sodium a highly reactive alkali metal.

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Step 1:
I'll solve this step-by-step following the specified LaTeX and formatting guidelines:

Step 2:
: Determine the electron configuration of sodium

Step 3:
: Identify the valence electrons

Final Answer

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