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Because he was unaware that any others existed

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13y ago

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Related Questions

What is John Dalton's theory on the Periodic table?

he contributed symbols


How many laws are there in the periodic table of elements?

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Why did Dalton only list 20 elements?

because he got bored half way through listing them all so gave up half way through :L


Are the element sin the periodic table the only elements discovered?

Yes. The elements in the Periodic Table are the only elements that have been discovered. However, we are still discovering and synthesising more elements.


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