It is named from the Latin tellus for "earth". Chemistry of Tellurium (Z=52) Discovered by von Reichenstein in 1782, tellurium is a brittle metalloid that is relatively rare.Selenium is a non-metal and can be compared chemically to its other non-metal counterparts found in Group 16: The Oxygen Family, such as sulfur and tellurium. Chemistry of Selenium (Z=34) Element number 34, selenium, was discovered by Swedish chemist Jons Jacob Berzelius in 1817.Sulfur also takes on many forms, which include elemental sulfur, organo-sulfur compounds in oil and coal, H2S(g) in natural gas, and mineral sulfides and sulfates. Because it is 0.0384% of the Earth's crust, sulfur is the seventeenth most abundant element following strontium. Chemistry of Sulfur (Z=16) Sulfur is a chemical element that is represented with the chemical symbol "S" and the atomic number 16 on the periodic table.
Oxygen is the most common element in the earth's crust and makes up about 20% of the air we breathe. Oxygen is not only important to supporting life, but also plays an important role in many other chemical reactions. Without oxygen, animals would be unable to breathe and would consequently die. Chemistry of Oxygen (Z=8) Oxygen is an element that is widely known by the general public because of the large role it plays in sustaining life.The group 16 elements are intimately related to life.
#ELEMENT TABLE GROUPS FREE#
These can be found in nature in both free and combined states.
It consists of the elements oxygen, sulfur, selenium, tellurium and polonium.
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