Bromine Element (Periodic Table)

Bromine

Bromine (Br) is a chemical element of the periodic table, located in the group 17 and the period 4, and has the atomic number 35. It is a reddish-brown liquid, whose name comes from the Greek word “bromos”, which means stench. It is a reactive nonmetal and is the third lightest halogen, after the chlorine element.

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 Bromine Element

Bromine
‣ What does bromine look like?

Appearance: reddish-brown
‣ Who discovered bromine? When was bromine discovered?

Discovery and first isolation: Antoine Jerome Balard and Carl Jacob Lowig (1825)
‣ Where is bromine located on the periodic table?

Bromine Periodic Table

Location: Bromine is found in the fourth row of the periodic table, next to the selenium element.
‣ What is the atomic number of bromine?

Atomic number (Z): 35
‣ What is bromine symbol?

Symbol: Br
‣ What is the atomic weight of bromine?

Standard atomic weight: [79.901, 79.907] conventional: 79.904
‣ What block is bromine in the periodic table?

Block: p-block
‣ What group does bromine belong to?

Group: 17 (halogens)
‣ Which period does bromine belong to?

Period: 4
‣ What is the atomic radius of bromine?

Atomic radius: empirical: 120 pm
Bromine covalent radius: 120±3 pm
Bromine Van der Waals radius: 185 pm
‣ What is bromine melting point?

Melting point: (Br2) 265.8 K (-7.2 °C, 19 °F)
‣ What’s the boiling point of bromine?

Boiling point: (Br2) 332.0 K (58.8 °C, 137.8 °F)
Bromine critical point: 588 K, 10.34 MPa
Bromine triple point: 265.90 K, 5.8 kPa
‣ How many electron shells does bromine have?

Electrons per shell: 2, 8, 18, 7
‣ What is the ground state electron configuration for bromine?

Electron configuration: [Ar] 3d10 4s2 4p5
‣ What is the ionization energy of bromine?

Ionization energies:
1st: 1139.9 kJ/mol
2nd: 2103 kJ/mol
3rd: 3470 kJ/mol
‣ What is the state of bromine at room temperature?

Phase (at r.t): liquid
‣ What is bromine density?

Density (near r.t): Br2, liquid: 3.1028 g/cm3
Bromine magnetic ordering: diamagnetic
Bromine natural occurrence: primordial
‣ What is the oxidation state of bromine?

Oxidation state: -1
‣ What is the electronegativity of bromine?

Electronegativity: Pauling scale: 2.96
Bromine heat of fusion: (Br2) 10.571 kJ/mol
Bromine heat of vaporization: (Br2) 29.96 kJ/mol
Bromine molar heat capacity: (Br2) 75.69 J/(mol K)
Bromine molar magnetic susceptibility: -56.4 × 10-6 cm3/mol
Speed of sound in bromine: 206 m/s (at 20 °C)
‣ What is the crystal structure of bromine?

Crystal structure: orthorhombic
Thermal conductivity of bromine: 0.122 W/(m.K)
Bromine electrical resistivity: 7.8 × 1010 Ω.m (at 20 °C)
Bromine CAS number: 7726-95-6

‣ Bromine vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)185201220244276332

‣ How many isotopes does bromine have?

Main isotopes of bromine
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
79Br51 %stable
81Br49 %stable

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