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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.
Named for a city in Scotland, strontium is a relatively soft, silvery-yellow metal. Like other alkali-earth metals, strontium is chemically active, reactin Named for a city in Scotland, strontium is a relatively soft, silvery-yellow metal. Like other alkali-earth metals, strontium is chemically active, reacting with both air and water. It is more reactive than calcium or magnesium. Strontium is used in glass for color television tubes because it blocks radiation, and in fireworks and other pyrotechnics, where it imparts a red color.