Nitrogen Element (Periodic Table)

Nitrogen

Nitrogen (N) is a chemical element of the periodic table, located in the group 15 and the period 2, and is having the atomic number 7. It is a colorless, odorless, tasteless gas, whose name comes from the Greek word “nitron” and “genes”, which means native soda forming. It is a reactive nonmetal and is the 30th most abundant element on earth. It is the first element in the pnictogen group and is the lightest element of the pnictogen group.

group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
period
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
– p block

FAQs on Nitrogen Element

Nitrogen
‣ What does nitrogen look like?

Appearance: colorless gas, liquid or solid
‣ When was nitrogen discovered and by whom?

Discovery: Daniel Rutherford (1772)
Named by: Jean-Antoine Chaptal (1790)
‣ Where is nitrogen found on the periodic table?

Nitrogen Periodic Table

Location: Nitrogen is found in the second row of the periodic table, next to the carbon element.
‣ What is nitrogen’s atomic number?

Atomic number (Z): 7
‣ What is nitrogen’s symbol?

Symbol: N
‣ What is the atomic weight of nitrogen?

Standard atomic weight: [14.00643, 14.00728] conventional: 14.007
‣ What block does nitrogen belong to?

Block: p-block
‣ What group is nitrogen in on the periodic table?

Group: 15 (pnictogens)
‣ What period is nitrogen in on the periodic table?

Period: 2
Nitrogen covalent radius: 71±1 pm
Nitrogen Van der Waals radius: 155 pm
‣ What is nitrogen’s melting point?

Melting point: (N2) 63.23 K (-209.86 °C, -345.75 °F)
‣ What is nitrogen boiling point?

Boiling point: (N2) 77.355 K (-195.795 °C, -320.431 °F)
Nitrogen critical point: 126.21 K, 3.39 MPa
Nitrogen triple point: 63.151 K, 12.52 kPa
‣ How many electron shells does nitrogen have?

Electrons per shell: 2, 5
‣ What is nitrogen’s electron configuration?

Electron configuration: [He] 2s2 2p3
‣ What is nitrogen ionization energy?

Ionization energies:
1st: 1402.3 kJ/mol
2nd: 2586 kJ/mol
3rd: 4578.1 kJ/mol
‣ Is nitrogen a solid, liquid or gas?

Phase (at r.t): gas
‣ What is nitrogen density?

Density (at STP): 1.2506 g/L at 0 °C, 1013 mbar
when liquid (at b.p): 0.808 g/cm3
Nitrogen magnetic ordering: diamagnetic
Nitrogen natural occurrence: primordial
‣ What is the nitrogen oxidation state?

Oxidation state: -3, +3, +5
‣ What is the electronegativity of nitrogen?

Electronegativity: Pauling scale: 3.04
Nitrogen heat of fusion: (N2) 0.72 kJ/mol
Nitrogen heat of vaporization: (N2) 5.57 kJ/mol
Nitrogen molar heat capacity: (N2) 29.124 J/(mol K)
Speed of sound in nitrogen: 353 m/s (gas, at 27 °C)
‣ What is the crystal structure of nitrogen?

Crystal structure: hexagonal
Thermal conductivity of nitrogen: 25.83 × 10-3 W/(m.K)
Nitrogen CAS number:
17778-88-0
7727-37-9 (N2)

‣ Nitrogen vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)374146536277

‣ How many isotopes does nitrogen have?

Main isotopes of nitrogen
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
13Nsyn9.965 minε13C
14N99.6 %stable
15N0.4 %stable

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