![Bohr model of first 18 elements of the periodic table [11] | Download Scientific Diagram](https://www.researchgate.net/publication/257386620/figure/fig2/AS:297615947255817@1447968579478/Bohr-model-of-first-18-elements-of-the-periodic-table-11.png "Bohr model of first 18 elements of the periodic table [11] | Download Scientific Diagram")
Bohr model of first 18 elements of the periodic table [11] | Download Scientific Diagram
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What Are the First 20 Elements? - Names and Symbols
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First 20 Elements Of The Periodic Table Quiz - ProProfs Quiz
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