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Finely powdered strontium metal is sufficiently reactive to ignite spontaneously in air. It reacts with water quickly (but not violently like the Group 1 metals) to produce strontium hydroxide and hydrogen gas. Strontium and its compounds burn with a crimson flame and are used in fireworks. Strontiumâs Periodic Table Neighborhood Strontium is a Group 2 Alkaline earth metal. It usually exists as a divalent ion, Sr 2+, in its compounds. Strontiumâs chemistry is very similar to that of calcium, which sits above it in Group 2.
Where Is Chlorine Found On The Periodic Table? ThoughtCo, Feb. 28, 2017, thoughtco.com/chlorine-found-on-the-periodic-table-606126. Helmenstine, Anne Marie, Ph.D. (2017, February 28). Where Is Chlorine Found On The Periodic Table? Retrieved from https://www.thoughtco.com/chlorine-found-on-the-periodic-table-606126 Helmenstine, Anne Marie, Ph.D. Where Is Chlorine Found On The Periodic Table? Chlorine's location in the periodic table of the elements. Todd Helmenstine Chlorine is the 17 th element on the periodic table.