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Dmitri Mendeleev (in his Periodic Table, who arranged according to increasing Atomic Mass).

Niels Bohr in the modern periodic table, where the elements are arranged in increasing atomic number.

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12y ago

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Related Questions

How many groups can the elements be put?

The elements are grouped in to 7's. I took John Newlands 12 years to think of that solution. :)


How many groups of elements in periodic table?

There are 18 groups and 7 periods in the modern periodic table.


Mendeleev's name for a column of elements?

mendeleev's name for a column of elements was groups.


How many groups of elements we're formed?

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The arrangement of chemical elements in groups and periods is determined by the periodicity of the chemical properties. In the case of the transition state elements, there are some smaller groups because of the way the incomplete inner electron shells are filled.


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The vertical columns on the periodic table of elements are called periods. true or false?

no its false i put true and it was wrong they are called groups!!!!!


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The elements in the 8 main columns of the Pperiodic Table are called Groups. Groups 1 and 2 are separated from Groups 3 to 8 by a block of elements called the Transition Series and the columns in this series have no specific names.


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