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- Name: Strontium
- Symbol: Sr
- Atomic Number: 38
- Atomic Weight: 87.62 u
- Period: 5
- Group: 2
23 Strontium Facts for Kids
- Strontium is a chemical element on the periodic table.
- Strontium is a soft metal that is highly chemically reactive.
- Strontium has a yellowish silvery-white color.
- The symbol for strontium is Sr.
- The atomic number for strontium is 38.
- The standard atomic weight for strontium is 87.62 u.
- Strontium is a solid at room temperature.
- Strontium is in the alkaline earth metal element category on the periodic table.
- Strontium is a period 5 chemical element, which is the fifth row on the periodic table.
- Strontium is a group 2 chemical element, which is the alkaline earth metal group.
- Strontium is in the s-block on the periodic table of elements.
- The electron configuration for strontium is [Kr] 5s2.
- The electrons per shell for strontium are 2, 8, 18, 8, 2.
- Strontium has four known stable isotopes.
- The four strontium stable isotopes are 84Sr, 86Sr, 87Sr and 88Sr.
- 88Sr accounts for over 80% of all natural strontium.
- In 1790, Scottish chemists Adair Crawford and William Cruickshank discovered that strontian ore was probably a new chemical element.
- In 1808, Cornish chemist Humphry Davy first isolated strontium using electrolysis.
- Strontium is the 15th most abundant element on Earth.
- The compound strontium aluminate is commonly used in toys that glow in the dark.
- The compound strontium carbonate is commonly used in pyrotechnics to add a deep red color.
- The compound strontium chloride is a common ingredient t in toothpastes for people with sensitive teeth.
- The radioactive isotope strontium-89 is used as a treatment for metastatic bone cancer.
Additional Resources on the Chemical Element Strontium
- Strontium – Learn more about the chemical element strontium on the U.S. National Library of Medicine website.
- Strontium (Sr) – Discover more facts about strontium on the Royal Society of Chemistry website.
- Strontium – Wikipedia – Find more strontium facts on the Wikipedia website.