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Since sodium has atomic number 11, its electronic configuration is untill 3s1. This means the valence shell has 1 electron, so it has 1 valence electron.

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12y ago

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A sodium atom has 1 valence electron. Sodium belongs to group 1 of the Periodic Table, which means it has 1 electron in its outer shell.

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9mo ago
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Q: How many valance electrons dose a sodium atom have?
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