Atomic NumberAtomic Number of Strontium
Atomic Number of Strontium is 38.
Chemical symbol for Strontium is Sr. Number of protons in Strontium is 38. Atomic weight of Strontium is 87.62 u or g/mol. Melting point of Strontium is 769 °C and its the boiling point is 1384 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Strontium
Strontium is an alkaline metal known for its extremely high chemical reactivity. It has got its name after a town in Scotland, Strontian. It occurs naturally on the surface of our planet in various minerals, and a large portion of natural strontium is produced in China. Since the properties of this chemical element are similar to the ones of calcium, there can be a bit of strontium accumulated in living organisms. When this chemical element burns, a salt of bright red color is produced, that’s why it is used for producing fireworks. Strontium is also used in chemical industry and for producing magnets. It is also a by-product of radioactive chemical reactions, and it can be dangerous and carcinogen for human body as a radioactive element.
Properties of Strontium Element
| Atomic Number (Z) | 38 |
|---|---|
| Atomic Symbol | Sr |
| Group | 2 |
| Period | 5 |
| Atomic Weight | 87.62 u |
| Density | 2.64 g/cm3 |
| Melting Point (K) | 1050 K |
| Melting Point (℃) | 769 °C |
| Boiling Point (K) | 1655 K |
| Boiling Point (℃) | 1384 °C |
| Heat Capacity | 0.301 J/g · K |
| Abundance | 370 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Alkaline earth metal |
| Electronegativity (Pauling) χ | 0.95 |
| Ionization Energy (eV) | 5.6949 |
| Atomic Radius | 200pm |
| Covalent Radius | 192pm |
| Valence Electrons | 2 |
| Year of Discovery | 1790 |
| Discoverer | Crawford |