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The Periodic Table.

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Hanks tells the amazing story Dmitri Mendeleev and the periodic table he created.

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Posted by Visual science
Periodic table of elements.
Posted by Visual science
Periodic table (simplified).
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Periodic table of elements in pictures.
Posted by Visual science
Periodic trends.

As the atomic radius increases, electrons become further from the nucleus and are more easily lost, so ionisation energy (the energy required to remove electrons) is lower.

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Isotopes

Isotopes are all atoms of the same element. They have the same number of protons but a different numbers of neutrons.

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Allotropes of carbon.
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"Ever wonder what all those names on the periodic table actually mean?

There's a whole lot of fascinating history on Mendeleev's table. Some carry names from antiquity, some are named for people, some are named for places, and some are named for mythical beings. Discover the etymology of the elements!"

Posted by denizm75
Posted by Visual science