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The top documents tagged [featomic number]
Periodic Table
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PBL 1 - Basic Chemistry
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Atomic Symbol: K Number: 19 Weight: 39.0983 Number of Protons: 19 Electrons: 19 Neutrons: 20 Isotopes: 22, with weights from 32-54 Natural Isotopes: 39
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Potassium. .
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CORRELATION BETWEEN THE REACTIVITY OF METALS AND THE TIME OF DISCOVERY
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