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You are here: Home / Science / What Changes Have Been Made To Mendeleyev’s Periodic Table and How Many New Elements Have Been Added?

What Changes Have Been Made To Mendeleyev’s Periodic Table and How Many New Elements Have Been Added?

March 14, 2020 by Karen Hill

Considering all the discoveries that have been made since Dmitri Mendeleyev devised his periodic table, there have been few changes to his table.

Fifty new elements have been added as they have been discovered, but the main change had to do with a new measure of the atom, the atomic number.

Mendeleyev’s first periodic table was a brilliant way of organizing knowledge that led other scientists to think in new ways and predict the discovery of new elements.

The modern table features new elements, and the addition of the atomic number.

The German chemist Julius Lothar Meyer worked out a very similar periodic table at about the same time as Mendeleyev.

He published his findings in 1870, one year after Mendeleyev.

Related Facts

  • Who Discovered the Periodic Chart of Elements and When was the Periodic Table invented?
  • How Did Dmitri Mendeleev Arrange His New Periodic Table of the Elements By Weight and Chemical Properties?
  • How Did Dmitri Mendeleev’s Periodic Table Enable Him To Predict the Properties of Undiscovered Elements?
  • Who Discovered Isotopes and Why do some chemical elements have different atomic weights?
  • Who Was Dmitry Mendeleyev and When Did Mendeleyev Create the First Version of the Periodic Table of Elements?
  • How Did the Periodic Table of the Elements Originate and Who First Listed the Elements By Atomic Weight?

Filed Under: Science

About Karen Hill

Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.

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