Bromine Element (Periodic Table)

Bromine
Bromine block

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

Bromine Element Information

Bromine Element
Bromine appearance | source: Wikipedia
Bromine Periodic Table
Bromine location on periodic table
Bromine is found in the fourth row of the periodic table, next to the selenium element.
Origin of name Greek word “bromos” (which means stench)
Symbol Br
Atomic number (Z) 35
Atomic mass 79.904 u
Block p-block
Group 17 (halogen)
Period 4
Classification Reactive nonmetal
Atomic radius 120 pm
Covalent radius 120±3 pm
Van der Waals radius 185 pm
Melting point -7.2 ℃, 19 ℉, 265.8 K
Boiling point 58.8 ℃, 137.8 ℉, 332.0 K
Electron configuration [Ar] 3d10 4s2 4p5
Learn how to write: Bromine Electron Configuration
Electrons per shell 2, 8, 18, 7
Learn how to draw: Bromine Bohr Model
Crystal structure Orthorhombic
Phase at r.t Liquid
Density near r.t 3.1028 g/cm3
Main isotopes Bromine-79, Bromine-81
Natural occurrence Primordial
Oxidation state -1, +1, +3, +5
Electronegativity (Pauling scale) 2.96
Protons
Neutrons
Electrons
35
45
35
Learn how to find: Bromine Protons Neutrons Electrons
Valence electrons 7
Learn how to find: Bromine Valence Electrons
CAS number 7726-95-6
Discovered by Antoine Jérôme Balard and Carl Jacob Löwig in 1825

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