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www.reference.com/article/periodic-table-elements-5ab96af5675149e8

The periodic table of elements is a chemistry reference that lists elements by increasing atomic number, which typically correlates to their atomic masses. The atomic number increases from left to right as well as from top to bottom. Each of the rows on the table is a period.

www.reference.com/science/many-elements-periodic-table-257aaf2fe919ca95

There are 118 known elements on the periodic table. The most recently discovered element, Ununoctium, was first reported by Russian scientists from Dubna in 2002.

www.reference.com/article/created-periodic-table-elements-c15e822c765137d

While the invention of the periodic table of elements is commonly attributed to Dmitri Mendeleev, the atomic weight sorting system was first conceptualized in 1862 by Alexandre-Emile Béguyer de Chancourtois. Despite releasing his table seven years before Mendeleev, Chancourtois' status as a geologis

www.reference.com/article/can-periodic-table-includes-element-names-db4b3c9a390deca0

About.com and Ptable.com provide periodic tables that include all element names. The website Periodictable.com also provides a periodic table with element names and a number of identifying pictures.

www.reference.com/article/can-downloadable-periodic-table-elements-5babbd7b95f1a78a

As of 2015, periodic tables of the elements can be downloaded from Los Alamos National Laboratory, Science Geek and WebElements. All three offer downloads in PDF format.

www.reference.com/article/group-6-periodic-table-elements-called-f8d75bf6d8950606

Group 6 does not have a unique name; it belongs to a larger family known as the transition metals. The transition metals include Groups 3 through 12 on the periodic table. Group 6 contains the elements chromium, molybdenum, tungsten and seaborgium.

www.reference.com/article/period-periodic-table-d136127780fc2b7f

A period on the periodic table is a horizontal grouping of elements running from the left to right of the table. Several trends are observed going from the left side of the periodic table to the right.

www.reference.com/article/co-periodic-table-514e7e8b0c60e232

Co in the periodic table of elements is cobalt. Located in group nine, period four of the periodic table, this transition metal has an atomic number of 27 and an atomic weight of 58.9. It is a hard element that appears bluish-gray in color.

www.reference.com/science/periodic-table-tell-f8b64e8288be64b

The Periodic Table offers basic information about each one of the known chemical elements. Each element has its own box in the table, and these boxes include the element's atomic number, atomic weight and chemical symbol. An element's position on the table indicates which elements share its basic pr

www.reference.com/science/columns-periodic-table-elements-called-1aced1378ffd13c2

The columns on the periodic table of elements are called groups. The elements in a group share the same configuration of valence electrons, which gives the elements similar chemical properties. The number of valence electrons in a group is sometimes represented with a Roman numeral above the column.