Which of these elements has a smaller atomic #?
1= Sodium
2=Zirconium
3=Uranium
Sodium has a smaller atomic number.
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Asked 9/24/2011 2:23:32 PM
Updated 363 days ago|7/12/2025 7:20:48 AM
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Edited by
yumdrea [7/12/2025 7:20:46 AM]
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