A period 6 element is one of the chemical elements in the sixth... - dofaq.co
period 6 element

A period 6 element is one of the chemical elements in the sixth...

wikipedia - 03 Feb 2017
A period 6 element is one of the chemical elements in the sixth row (or period) of the periodic table of the elements, including the lanthanides. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the elements as their atomic number increases: a new row is begun when chemical behaviour begins to repeat, meaning that elements with similar behaviour fall into the same vertical columns. The sixth period contains 32 elements, tied for the most wi

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