Element 38 of Periodic table is Strontium with atomic number 38, atomic weight 87.62. Strontium, symbol Sr, has a Face Centered Cubic structure and Silver color. Strontium is a alkaline earth metal element. Trivial name of Strontium is alkaline earth metals*. Know everything about Strontium Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.
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.
Read key information and facts about element Strontium
Explore our interactive periodic table
Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 38 to find Strontium on periodic table.
Another way to read periodic table and locate an element is by using group number (column) and period number (row). To locate Strontium on periodic table look for cross section of group 2 and period 5 in the modern periodic table.
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The element Strontium was discovered by William Cruickshank (chemist) in year 1790 in United Kingdom . Strontium derived its name from Strontian, a small town in Scotland
The table below shows the abundance of Strontium in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body.
The solid state structure of Strontium is Face Centered Cubic.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants (a, b and c)
and the angles between them Lattice Angles (alpha, beta and gamma).
The positions of the atoms inside the unit cell are described by the set of atomic positions ( xi, yi, zi) measured from a reference lattice point.
The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.
Strontium atoms have 38 electrons and the electronic shell structure is [2, 8, 18, 8, 2] with Atomic Term Symbol (Quantum Numbers) 1S0.
Shell Structure of Strontium - Electrons per energy level
The ground state electronic configuration of Neutral Strontium atom is [Kr] 5s2. The portion of Strontium configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Kr]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 5s2, electrons in the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Strontium atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2
Strontium atomic radius is 219 pm, while it's covalent radius is 192 pm.
219 pm (2.19 Å)
The electron affinity of Strontium is 5.03 kJ/mol
Refer to table below for Ionization energies of Strontium
Refer to below table for Strontium Physical Properties
Strontium is Conductor of electricity. Refer to table below for the Electrical properties of Strontium
Refer to table below for Thermal properties of Strontium
Isotopes of rhodium. Naturally occurring Strontium has 4 stable isotope - 84Sr, 86Sr, 87Sr, 88Sr.
List of unique identifiers to search the element in various chemical registry databases