Strontium element (Sr) is in group 2 and period 5 of a periodic table. Strontium is in the s-block and it is classified as an alkaline earth metal on the periodic table.
There is a lot more information related to strontium which is mentioned in the Information Table given below.
So let’s dive right into it!
Table of contents
- Strontium element (Information Table)
- Strontium element in Periodic table
- Facts about Strontium
- Properties of Strontium
- Uses of Strontium
Strontium Element (Information Table)
The important data related to strontium element is given in the table below.
|Appearance of strontium||Silvery surface with yellow tint|
|Atomic number of strontium||38|
|Symbol of strontium||Sr|
|Atomic mass of strontium||87.62 u|
|Protons, Neutrons & Electrons in strontium||Protons: 38, Neutrons: 50, Electrons: 38|
|State of strontium (at STP)||Solid|
|Group number of strontium in periodic table||2|
|Period number of strontium in periodic table||5|
|Block of strontium in periodic table||s-block|
|Category of strontium||Alkaline earth metals|
|Bohr model or Electrons per shell or Electrons arrangement in strontium||2, 8, 18, 8, 2|
|Electron configuration of strontium||[Kr] 5s2|
|Orbital diagram of strontium|
|Valence electrons in strontium||2|
|Electronegativity of strontium (on pauling scale)||0.95|
|Atomic radius of strontium (van der Waals radius)||249 picometers|
|Density of strontium||2.63 g/cm3|
|1st ionization energy of strontium||5.695 eV|
|Main isotope of strontium||88Sr|
|Melting point of strontium||1050 K or 777 °C or 1431 °F|
|Boiling point of strontium||1650 K or 1377 °C or 2511 °F|
|Crystal structure of strontium||Face Centered Cubic (FCC)|
|Discovery of strontium||By William Cruickshank in 1787|
Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).
Strontium element in Periodic table
The Strontium element (Sr) has the atomic number 38 and is located in group 2 and period 5. Strontium is in solid state at STP and it is classified as an alkaline earth metal on the periodic table.
Facts about strontium
Here are a few interesting facts about the strontium element.
- Strontium is the 15th most abundant element present in the earth’s crust.
- The concentration of strontium in the earth’s crust is around 360 ppm.
- Around 3 lakh tons of strontium is produced annually in the entire world.
- Strontium is a reactive metal and hence it is kept in the mineral oil or kerosene.
- Strontianite and Celestite are the two ores from which most of the strontium is obtained.
- The leading producers of strontium are China and Spain.
Properties of strontium
Here is a list of some physical properties and chemical properties of strontium.
Physical properties of strontium
- Strontium is a soft metal and it has a silvery surface with a yellowish tint.
- Strontium has an atomic mass 87.62 u and its density is 2.63 g/cm3.
- Strontium has stable isotopes as well as radioactive isotopes, and out of these isotopes, the most abundant isotope is 88Sr (which has an abundance of 82.5%).
- The melting point and boiling point of strontium is 1050 K and 1650 K respectively.
Chemical properties of strontium
- Strontium is reactive metal and hence it is always found as a compound with other elements in the earth’s crust.
- Strontium burns in the air with a bright red flame.
- Strontium reacts with water to form strontium hydroxide and liberates hydrogen gas.
Uses of strontium
Here are some uses of the strontium element.
- Strontium is used in flares as well as fireworks because it burns with a bright red flame.
- Strontium titanate is used in gemstones as it has a high refractive index.
- Strontium chloride hexahydrate is used in toothpaste for sensitive teeth.
- The radioactive isotope of strontium (89Sr) is used in treating bone cancer.
- Strontium aluminate is used in toys that glow in dark (because it has a property to glow in dark).