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serg [7]
3 years ago
15

What differentiates one element from another

Chemistry
1 answer:
worty [1.4K]3 years ago
8 0
I think the number of protons in the nucleus the number of valence electrons atomic mass... 
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A first-order decomposition reaction has a rate constant of 0.00440 yr−1. How long does it take for [reactant] to reach 12.5% of
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