Periodic table / Strontium

Overview

Strontium is a chemical element with symbol Sr and 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 when it is exposed to air.

Electron configuration

The electron configuration of Strontium is [Kr] 5s2, with electron shells of 2, 8, 18, 8, 2.

Physical and chemical properties

Strontium is classified as a alkaline earth metal. It has an atomic mass of 87.621 and exists as a solid at standard conditions.

Real-world uses of Strontium

Strontium and other alkaline earth metals are commonly used in alloys, industrial compounds, and in some cases in medical or agricultural applications.

Interesting facts about Strontium

• Strontium has the atomic number 38 and chemical symbol Sr.
• It belongs to period 5, group 2 of the periodic table.
• Strontium was discovered by William Cruickshank (chemist).

Explore Strontium interactively

Want to compare Strontium with other elements or see it highlighted on the full table? Open the interactive periodic table and click on Sr to explore properties, trends, and neighboring elements. You can also test your knowledge with our periodic table quiz game.