Index: > A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Business Industries Finance Tax

Home > Nitrogen


First Prev [ 1 2 3 4 ] Next Last


carbonnitrogenoxygen
 
N
P  
 
 

General
Name, Symbol, Number Nitrogen, N, 7
Chemical series nonmetals
Group, Period, Block 15 (VA), 2 , p
DensityFor other meanings of density, see density (disambiguation Density (symbol: rho Greek: rho) is a measure of mass per unit of volume. The higher an object's density, the higher its mass per volume. The average density of an object equals its total mass div, Hardness 1.2506 kg/m3Kilogram per cubic metre is the SI measure of density and is represented as kg/m³, where kg stands for kilogram and m³ stands for cubic metre. The density of water is about 1000 kg/m³, since a cubic metre of water weighs about a tonne. kg/m³" is sometimes(273 KThe kelvin (symbol: K is the SI unit of temperature, and is one of the seven SI base units. It is defined by two facts: zero kelvin is absolute zero (when molecular motion stops), and one kelvin is the fraction 1/273. 16 of the thermodynamic temperature o), NA
AppearanceFor alternative meanings, see color (disambiguation). visual arts. Color (or colour is a sensation which (in humans) derives from the ability of the fine structure of the eye to distinguish three differently filtered analyses of a view. The perception of colorless
Atomic properties
Atomic weightIn reference to a certain isotope of a chemical element, atomic weight (more accurately relative atomic mass though also called simply atomic mass is the mass of one atom of the isotope expressed in units atomic mass unit amu) such that the Carbon-12 isot 14.0067 amuThe atomic mass unit amu , unified atomic mass unit u , or dalton Da , is a small unit of mass used to express atomic masses and molecular masses. It is defined to be 1/12 of the mass of one atom of Carbon-12. Accordingly, :1 u 1/N gram 1/(1000 N) kg (whe
Atomic radiusAtomic radius is the distance from the atomic nucleus to the outmost stable electron orbital in a atom that is at equilibrium and is measured in picometers or Angstroms. Atomic radii are called covalent radii (a reference to the types of bonds formed) whe (calc.) 65 (56) pm
Covalent radius 75 pm
van der Waals radius 155 pm
Electron configuration [ He]2s22p3
e- 's per energy level 2, 5
Oxidation states ( Oxide) ±3,5,4,2 (strong acid)
Crystal structure hexagonal
Physical properties
State of matter gas ( __)
Melting point 63.14 K (-345.75 ° F)
Boiling point 77.35 K (-320.17 °F)
Molar volume 13.54 ×10-6 m3/mol
Heat of vaporization 2.7928 kJ/mol
Heat of fusion 0.3604 kJ/mol
Vapor pressure ND Pa at __ K
Speed of sound 334 m/s at 298.15 K
Miscellaneous
Electronegativity 3.04 ( Pauling scale)
Specific heat capacity 1040 J/(kg*K)
Electrical conductivity ND 106/(m· ohm)
Thermal conductivity 0.02598 W/(m*K)
1st ionization potential 1402.3 kJ/mol
2nd ionization potential 2856 kJ/mol
3rd ionization potential 4578.1 kJ/mol
4th ionization potential 7475.0 kJ/mol
5th ionization potential 9444.9 kJ/mol
6th ionization potential 53266.6 kJ/mol
7th ionization potential 64360 kJ/mol
Most stable isotopes
iso NA half-life DM DE M eV DP
13N {syn.} 9.965 m e capture 2.220 13C
14N 99.634% N is stable with 7 neutrons
15N 0.366% N is stable with 8 neutrons
SI units & STP are used except where noted.


Nitrogen is the chemical element in the periodic table that has the symbol N and atomic number 7. A common normally colorless, odorless, tasteless and mostly inert diatomic non-metal gas, nitrogen constitutes 78 percent of Earth's atmosphere and is a constituent of all living tissues. Nitrogen forms many important compounds such as ammonia, nitric acid, and cyanides.





Non User