The Creation of the Table:
Robert Boyle: In 1661, defined an element as a substance that cannot be broken down into a simpler substance by a chemical reaction.
Johann Wolfgang Döbereiner: In 1829, grouped all the known elements into families of traids of elements that had similar properties.
Dmitri Ivanovitch Mendeléev: In 1869, created the first excepted version of the periodic table. His version of the periodic table is pictured above.
Glenn T. Seaborg: In 1944, created the modern version of the periodic table.
Johann Wolfgang Döbereiner: In 1829, grouped all the known elements into families of traids of elements that had similar properties.
Dmitri Ivanovitch Mendeléev: In 1869, created the first excepted version of the periodic table. His version of the periodic table is pictured above.
Glenn T. Seaborg: In 1944, created the modern version of the periodic table.
Organization of the Table:
The Periodic Table is grouped into several different periods and groups.
A period is a horizontal row in the periodic table. There are seven periods on the modern periodic table. A group is a vertical column in the periodic table, and it is also known as a family. There are eighteen groups in the periodic table.
For more information, visit https://www.chem.tamu.edu/class/majors/tutorialnotefiles/periodic.htm
A period is a horizontal row in the periodic table. There are seven periods on the modern periodic table. A group is a vertical column in the periodic table, and it is also known as a family. There are eighteen groups in the periodic table.
For more information, visit https://www.chem.tamu.edu/class/majors/tutorialnotefiles/periodic.htm