Element 11 of Periodic table is
Sodium with atomic number 11,
atomic weight 22.98977.
Sodium, symbol Na, has a
Body Centered Cubic structure and Silver color.
Sodium is a alkali metal element.
Trivial name of Sodium is alkali metals*.
Know everything about Sodium Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Sodium /ˈsoʊdiəm/ is a chemical element with symbol Na (from Ancient Greek Νάτριο) and atomic number 11. It is a soft, silver-white, highly reactive metal. In the Periodic table it is in column 1 (alkali metals), and shares with the other six elements in that column that it has a single electron in its outer shell, which it readily donates, creating a positively charged atom - a cation.
Read key information and facts about element Sodium
Explore our interactive periodic table
Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of
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
11 to find Sodium 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 Sodium on periodic
table look for cross section of group 1 and period
3 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Sodium was discovered by Humphry Davy in year
1807 in United Kingdom
derived its name from the English word soda (natrium in Latin)
The table below shows the abundance of Sodium in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Sodium is Body Centered Cubic.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in
dimensional space to form the structure.
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell
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.
Sodium atoms have 11 electrons and
the electronic shell structure is [2, 8, 1] with Atomic Term Symbol (Quantum Numbers) 2S1/2.
Shell Structure of Sodium - Electrons per energy
The ground state electronic configuration of Neutral Sodium atom is
The portion of Sodium configuration that is equivalent to the noble gas of
the preceding period, is abbreviated as [Ne]. 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 3s1, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Sodium atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s1
Sodium atomic radius is 190 pm, while it's covalent radius is 154 pm.
The electron affinity of Sodium is 52.8 kJ/mol
Refer to table below for Ionization energies of Sodium
Refer to below table for Sodium Physical Properties
Sodium is Conductor of electricity. Refer to
below for the Electrical properties of Sodium
Refer to table below for Thermal properties of Sodium
Isotopes of rhodium. Naturally occurring Sodium has
1 stable isotope -
List of unique identifiers to search the element in various chemical registry databases