Elements
11

Na

Sodium

Sodium (Na) is a silver-white coloured metal that has the atomic number 11 in the periodic table. It is an Alkali Metal and is located in Group 1 of the periodic table. it has the symbol Na.

Sodium is a highly reactive metal in Group 1 of the periodic table. It is an Alkali metal which will readily react with water to produce sodium hydroxide and also easily tarnishes in oxygen. Much like Lithium, it is stored under oil to prevent oxidation by moisture and oxygen. Sodium is present in most living organisms and plays a large part in nerve transmissions in organisms. Sodium metal itself has some uses in nuclear reactors and as a reagent in some chemical reactions due to its reactivity. However, it is the compounds of Sodium that have the most uses. Sodium Hydroxide is a widely used reagent in many chemical reactions as an alkali. Sodium chloride is a common salt that is used widely in food preparation and also chemical reactions. Sodium was discovered and isolated by Humphry Davy in 1807 who made it by separating sodium hydroxide using electrolysis. It is located in Group 1, the Alkali metals. It is a metallic solid at room temperature that is easily cut by a knife. It has a melting point of 98°c and a boiling point of 883°c.

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FAQ's

What is the Melting Point for Sodium?

Sodium has a Melting Point of 97.81°F, meaning at 97.81°F it will turn to a liquid.

What is the Boiling Point for Sodium?

Sodium has a Boiling Point of 882.9°F, meaning at 882.9°F it will turn to a Gas.

What is the Electronegativity of Sodium?

Sodium's Electronegativty is 0.93. Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Sodium?

Sodium has a Heat of Vaporization of 96.96 kJ/mol.

Uses

There are few uses for the pure metal, however its compounds are used in medicine, agriculture and photography. Sodium chloride (NaCl) is table salt. Liquid sodium is sometimes used to cool nuclear reactors.

Sources

Obtained by electrolysis of melted sodium chloride (salt), borax and cryolite.

11
Protons
11
Electrons
12
Neutrons

Na

Element Symbol
Na
Atomic Weight
22.99
Atomic Number
11
State
Solid
Melting Point
Unknown
97.81
°C
Boiling Point
882.9
Unknown
°C
Heat of Vaporization
96.96
Unknown
kJ/mol
Crystal Structure
Cubic: Body centered
Thermoconductivity
1.41
Unknown
W/cmK
Shells
2,8,1
Group
Alkali Metal
Period
3
Block
S Block
Orbitals
[Ne] 3s1
Coefficient of Thermal Expansion
71 10^-6 K^-1
Covalent Radius
1.54 Å
Density at 293K
0.971 g/cm³
Electrical Conductivity
0.210 10^6/cm ohm
First Ionization Potential
5.1391 V
Second Ionization Potential
47.286 V
Third Ionization Potential
71.641 V
Ionic Radius
1.02 (+1) Å
Oxydation States
1
Lattice Parameter
4.2908 Å
Lattice Parameter 2
--
Lattice Parameter 3
--
Pronounced

SO-di-em

Discovered by

Sir Humphrey Davy

Discovery date

1807

Orbital configuration
2,8,1

Download the Periodic Table

Explore Other Alkali Metals

85.468
37

Rb

Rubidium
223
87

Fr

Francium
132.905
55

Cs

Caesium
6.941
3

Li

Lithium
39.098
19

K

Potassium
The alkali metals, found in group 1 of the periodic table (formally known as group IA), are so reactive that they are generally found in nature combined with other elements. The alkali metals are shiny, soft, highly reactive metals at standard temperature and pressure.
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