11
Na
Sodium
22.98976928
Basic Information
Bohr Model
Descriptive Numbers
Mass
Periodic Position
Classification
Abundance
Color
Atomic Radius
Temperature
Density
Heat
Speed of Sound
Electrical Resistance
Magnetic Properties
Elasticity
Hardness
Etymology
Discovery & Isolation
Production & Use
Radioactivity
Electron Affinity
Dipole Polarity
Lattice
Electron & Quantum
List of Compounds
Basic Information
Name
Sodium
Alternative Name
natrium
Atomic Number
11
Appearance
Silvery white metallic
Phase At STP
Solid
Spectrum Image
Source
WikipediaBohr Model
Static
Interactive
Descriptive Numbers
CAS Number
7440-23-5
CID Number
CID5360545
DOT Number
1428
RTECS Number
RTECSVY0686000
Mendeleev Number
2
Pettifor Number
11
Space Group Number
229
Glawe Number
11
Mass
Atomic Mass
22.98976928 Da
Uncertainty
2e-8
Periodic Position
X Position
1
Y Position
3
Period
3
Group
1
Classification
Block
s
Category
Alkaline Metals
Geochemical
Major
Goldschmidt
Lithophilic
Electrical Type
Conductive
Abundance
Urban Soil
5.8 mg/kg
Seawater
0.011 kg/L
Sun
0.06 mole ratio to silicon
Earth Crust
0.024 g
Human Body
0.14 %
Solar System
0.057 mole ratio to silicon
Meteorites
0.55 %
Color
Jmol
#AB5CF2
Molcas Gv
#AB5CF2
CPK
#0000FF
Atomic Radius
Empirical
180
Calculated
190
Van Der Waals
227
Bonding
227
Room Temperature
176
Batsanov
240
Rahm
225
Uff
298.3
Mm3
270
Alvarez
250
Bragg
177
Covalent (Single Bound)
154
Covalent (Cordero)
166
Covalent (Pyykko)
155
Covalent (Pyykko Double)
160
Mendeleev
157
C12
190
Metallic
186
Temperature
Melting/Freeze (USE)
370.944 °K
Melting/Freeze (WEL)
370.87 °K
Melting/Freeze (CRC)
370.794 °K
Melting/Freeze (LNG)
370.82 °K
Boiling/Density (USE)
1156.09 °K
Boiling/Density (WEL)
1156 °K
Boiling/Density (CRC)
1155.94 °K
Boiling/Density (LNG)
1154.4 °K
Boiling/Density (Zhang)
1163 °K
Critical Temperature
2573 °K
Flashpoint
277 °K
Autoignition Point
388 °K
Critical Pressure
35 MPa
Density
STP
0.968 kg/cm³
Solid (WEL)
968 kg/cm³
Solid (CRC)
970 kg/cm³
Solid (LNG)
968 kg/cm³
Liquid (CR2)
927 kg/cm³
Heat
Molar Volume
23.78 cm³/mol
Atomic Volume
23.7 cm³
Heat Of Fusion USE
2.64 kJ/mol
Heat Of Fusion CRC
2.6 kJ/mol
Heat Of Fusion LNG
2.6 kJ/mol
Heat Of Fusion WEL
2.6 kJ/mol
Evaporation USE
97.9 kJ/mol
Evaporation LNG
97.42 kJ/mol
Evaporation WEL
97.7 kJ/mol
Evaporation Zhang
97.4 kJ/mol
Molar Heat
28.23 J/molK
Heat Capacity USE
1.222 J/gK
Heat Capacity CRC
28.23 J/gK
Heat Capacity LNG
28.15 J/gK
Heat Capacity WEL
28.2 J/gK
Thermal Conductivity
142 W/m*K
Thermal Expansion
0.000071 1/K
Adiabatic Index
N/A
Speed of Sound
Extensional
3200 m/s
Electrical Resistance
80k
8 nΩm
273k
43.3 nΩm
293k
47.7 nΩm
298k
48.8 nΩm
300k
49.3 nΩm
Magnetic Properties
Order
paramanyetic
Susceptibility
8.8e-9 m3/kg
Elasticity
Shear Modulus
3.3 GPa
Bulk Modulus
6.3 GPa
Youngs Modulus
10 GPa
Hardness
Mohs
0.5
Brinell
0.69
Etymology
Description
It is a soft silvery element belonging to the first group (alkali metals) in the periodic table. This element is highly reactive, oxidizing in air and reacting violently with water. That's why it needs to be kept under oil. It was first isolated by Humphrey Davy in 1807.
Language Of Origin
English
Origin Of Word
From the English word soda (natrium in Latin)
Etymological Description
From the English word "soda" used for sodium compounds such as caustic soda, soda ash and baking soda. It probably comes from the Italian word sida (or directly from Medieval Latin soda), whose exact origin is unknown and which designates a type of soda grass from which soda is obtained.
Discovery & Isolation
Observed/Predicted By
H. Crowds
Observed/Discovery Year
1807
Discovery Location
Isolated Sample By
H. Crowds
Isolated Sample Year
1807
Production & Use
Sources
It is obtained by electrolysis of dissolved sodium chloride (salt), borax and cryolite.
Uses
The pure metal form has very few uses. However, its compounds are used in medicine, agriculture and photography. Sodium chloride is table salt. Liquid sodium is sometimes used to cool nuclear reactors.
Radioactivity
Half Life
Stable
Lifetime
Stable
Neutron Mass Absorption
0.0007
Neutron Cross Section
0.53
Electron Affinity
Electron Affinity (eV)
0.547926
Electron Affinity (kJ/mol)
52.867
Electron Affinity (pauling)
0.93
Electron Affinity (allen)
5.14
Electron Affinity (ghosh)
0.093214
Dipole Polarity
Accepted
162.7
Uncertainty
0.5
C6 GB
1570
C6 Coefficient
1518
Lattice
Constant Internal Default Radius
4.23
Constant
429.06, 429.06, 429.06
Strucutre
BCC
Angles
p/2, p/2, p/2
Electron & Quantum
Oxidation States
−1,1
Electron Configuration
1s2 2s2 2p6 3s1
Quantum Number
2S1/2
Electron Configuration Semantic
YuNeshch 3s1
Shells-0
2
Shells-1
8
Shells-2
1
Ionization Energies-0
495.8
Ionization Energies-1
4562
Ionization Energies-2
6910.3
Ionization Energies-3
9543
Ionization Energies-4
13354
Ionization Energies-5
16613
Ionization Energies-6
20117
Ionization Energies-7
25496
Ionization Energies-8
28932
Ionization Energies-9
141362
Ionization Energies-10
159076
List of Compounds
1-10 of 100 compounds
| Formula | Names |
|---|---|
| Na | sodium natrium sodium metal |
| NaBH4 | sodium borohydride sodium boron(-1) anion |
| NaBr | sodium bromide bromide salt of sodium hydrobromic acid sodium salt sedoneural |
| NaCl | sodium chloride common salt rock salt salttable salt |
| Na^35Cl | sodium chloride-35 sodium chloride-35Cl |
| NaF | sodium fluoride antibulit chemifluor floridine sodium monofluoride |
| NaH | sodium hydride sodium monohydride |
| NaHg | sodium mercury amalgam mercury; sodium |
| NaI | sodium iodide hydriodic acid sodium salt ioduril jodid sodny sodium monoiodide |
| K2Na | sodium-potassium alloy potassium; sodium |
