How many protons does the bromine ion have

bromine

The Interactive Periodic Table of the Elements (PSE)

Bromine: characteristics

Bromine (official name according to IUPAC)
17 (old nomenclature: Group VII A)
79.904 u (rounded to the five significant digits)
79.904 u +/- 1 digit (s) [1]
6,00 · 10-4 % (percentage by mass of the earth's shell, i.e. the earth's crust / oceans up to 16 km depth)

Bromine: atomic properties

kJ / moleV
1.1139.9 kJ / mol11.814 eV
2.2103 kJ / mol21.796 eV
3.3470 kJ / mol35.964 eV
4.4560 kJ / mol47.261 eV
5.5760 kJ / mol59.698 eV
6.8550 kJ / mol88.615 eV
7.9940 kJ / mol103.021 eV
8.18600 kJ / mol192.775 eV
VII, V, III, I, -I
(most important highlighted in bold)
Electronegativity (Pauling):
Electronegativity (Allred / Rochow):
Number of unstable isotopes:
isotopefrequency
79Br50,69%
81Br49,31%
isotopeHalf-life
80Br17.6min
82Br35h
83Br2.4h
84Br31.8h
85Br2.87min
86Br54min
87Br55.7s
88Br16.2s
89Br4.5s
90Br1.63s
91Br0.64s

(The list contains only the 11 most important isotopes with known half-lives.)
[Ar] 3d10 4s2 4p5
OrbitalElectrons
1s2
2s2
2p6
3s2
3p6
3d10
4s2
4p5
4d0
4f0
  • 7 electrons in the outermost occupied shell
  • 18 electrons in the second to last occupied shell
  • 8 electrons in the occupied shell below

Bromine: substance properties

266 K (~ -7.15 ° C - integer accuracy, decimal places only due to conversion from K → ° C)
liquid (under normal conditions)
Specific heat of fusion:
Specific heat of vaporization:
Thermal conductivity:
Specific heat capacity:
3.122 g / cm3
(under normal conditions)

 
Remarks:
  1. 1 digit = least significant digit, i.e. 2.435 +/- 3 digits means 2.432 ... 2.438
  2. The "CAS Registry Number" is that of the element bromine from Chemical Abstracts Service Assigned key number, which makes it easier to find specialist articles about this element in all publications and databases structured according to the CAS system.
    Legal notice: CAS registry number is a registered trademark of the American Chemical Society.