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10 Facts About The Periodic Table For National Periodic Table Of Elements Day

How many elements can you name? Do you know their atomic weight? Here are 10 facts you may not know about the periodic table of elements.

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1. Thallium (TI) is considered the deadliest element.

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Thallium pretends to be potassium to gain entry into our cells where it then breaks amino acid bonds within proteins. But don't worry. We're using our mad chemistry skills for good, not evil. We're looking at you, Walter White!

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2. You can find Phosphorus (P) in everyday items. Like on the red tip of a match which ignites a spark.

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Phosphorus was discovered by accident in 1669 by Hennig Brand. He was processing 60 buckets of urine in search of a compound that would turn ordinary metals into gold. Now that's a REAL commitment to science.

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3. Technetium (Tc) was the first element to be made artificially.

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Several scientists "discovered" element 43—naming it things like "davyium" and "nipponium"—only to have their discoveries debunked. Element 43 wasn't truly discovered until the 1930s when it was made in a cyclotron.

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7. Francium (Fr) is the rarest element on earth.

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That's right, Francium is WAY more rare than that four-leaf clover you found when you were a kid. It occurs naturally in uranium minerals, but the Earth’s crust probably contains less than 1 ounce at any time.

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