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Strontium Symbol Sr Atomic Number 38 Atomic Mass 87.62 Family Group 2 (Iia) Alkaline Earth Metal Pronunciation STRONT-she-um Overview Strontium is a member of the alkaline earth metals. The alkaline earth metals make up Group 2 (IIA) of the periodic...

Strontium is the fourth element in Group 2 of the periodic table, a group of elements known as the alkaline earth metals. It has an atomic number of 38, an atomic mass of 87.62, and a chemical symbol of Sr. Strontium is a silvery white metal that...

Stontium is an alkaline earth metal element denoted by the atomic symbol, Sr. It has an atomic weight of 87.62 and has an atomic number of 38. It is a silvery-white metal that oxidizes rapidly in air, forming a pale yellow crust of oxide on any freshly...

A radioactive isotope of strontium, produced during nuclear fission. The isotope was of great concern to environmental scientists during the period of atmospheric testing of nuclear weapons. Strontium 90 released in these tests fell to the...

Strontium (pronounced /ˈstrɒntiəm/) is a chemical element with the symbol Sr and the atomic number 38. An alkaline earth metal, strontium is a soft silver-white or yellowish metallic element that is highly reactive chemically. The metal turns yellow...

The Energy Department has not done enough in Russia and in developing countries to secure radioactive material that could be used to make a so-called dirty bomb, congressional investigators said Tuesday.A report by the Government Accountability Office said that over the past four years security...

The Energy Department has not done enough in Russia and in developing countries to secure radioactive material that could be used to make a so-called dirty bomb, congressional investigators said Tuesday.A report by the Government Accountability Office said that over the past four years security...

The Energy Department has not done enough in Russia and in developing countries to secure radioactive material that could be used to make a so-called dirty bomb, congressional investigators said.A report released Tuesday by the Government Accountability Office said that over the past four years...

The Environmental Protection Agency is investigating whether cancer-causing radioactive material was buried in the 1980s near a rifle range at Camp Lejeune, the Marine Corps' primary base on the Atlantic Ocean.A recently recovered Navy document dated 1981 said the material included 160 pounds of soil...