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The classic Periodic Table organizes the chemical elements according to the number of protons that each has in its atomic nucleus.

How the Periodic Table of the Elements is arranged

By Charlie Wood, Ben Biggs published

Reference The elements in the periodic table are arranged according to the transition from metal to nonmetal elements.

Reference
Periodic table of elements

How Many Chemical Elements Can You Name? 1 in 5 Americans Can't Name One.

By Stephanie Pappas published

One in 5 Americans can't name a single element on the Periodic Table.

Elements
Mendeleev’s first periodic table of elements was released on Feb. 17, 1869.

Mendeleev's Periodic Table Draft Is Virtually Unrecognizable — But It Changed Science Forever

By Brandon Specktor published

Back in 1869, the periodic table of elements had just 63 elements and was scribbled in ink.

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periodic table euchems

Europe's 'New' Periodic Table Predicts Which Elements Will Disappear in the Next 100 Years

By Brandon Specktor published

Oxygen can breathe easy, but the party may be over for helium balloons.

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periodic table, oldest periodic table

World’s Oldest Periodic Table Poster Turns Up in Scottish Storeroom

By Brandon Specktor published

The world's oldest classroom poster of the periodic table of elements, dating to 1885, has turned up in Scotland.

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Radioactive sign

Polonium: A Rare and Highly Volatile Radioactive Element

By Traci Pedersen published

Polonium was a critical ingredient in the first atomic bomb and it's a suspected poison in more than one high-profile death.

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Lithium batteries

What Is Lithium?

By Stephanie Pappas published

Lithium is a metal used in manufacturing, electronics and mental health.

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Yttrium

Facts About Yttrium

By Live Science Staff published

Properties, sources and uses of the element yttrium.

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Indium ingot

Facts About Indium

By Traci Pedersen published

Properties, sources and uses of the element indium.

Elements
niobium crystals

Facts About Niobium

By Rachel Ross published

Properties, sources and uses of the element niobium, and facts about its unusual history.

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