35 Br Bromo 79,904 u

Bromo

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Período
4
Grupo
17
Bloque
p-bloque
Fase (STP)
Liquid

El bromo es uno de los dos únicos elementos líquidos a temperatura ambiente. Se emplea en retardantes de llama, tratamiento de aguas y fotografía.

Apariencia: Reddish-brown liquid

Acerca de Bromo

One of only two elements that are liquid at ordinary temperatures, bromine is a dense, reddish-brown halogen of atomic number 35 and atomic mass 79.904. It has a density of 3.10 g/cm³ and boils at 332 K. Seven valence electrons ([Ar] 3d10 4s2 4p5) give a high electronegativity of 2.96 and a first ionization energy of 1140 kJ/mol. Antoine Jérôme Balard discovered the element in 1826. Bromine and its compounds are used in flame retardants, water treatment, and photography. It occupies group 17, period 4, below chlorine among the halogens.

Propiedades físicas

Masa atómica 79.904 u
Densidad 3.1028 g/cm³
Punto de fusión -7.3 °C
Punto de ebullición 58.9 °C
Fase a STP Liquid
Radio atómico 94.0 pm

Propiedades electrónicas

Electronegatividad 2.96
Energía de ionización 1139.9 eV
Afinidad electrónica 324.6 eV
Electrones de valencia 7

Configuración electrónica

Configuración [Ar] 3d¹⁰ 4s² 4p⁵

Configuración de capas electrónicas

Configuración de capas electrónicas de Bromo Br 2e⁻ 8e⁻ 18e⁻ 7e⁻
Estructura de capas electrónicas de Bromo: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 7

Posición en la tabla periódica

Posición de Bromo en la tabla periódica Br

Descubrimiento

Descubierto por: Antoine Jerome Balard
Año: 1826

Compuestos que contienen Bromo

Frequently Asked Questions

What is Bromo?
Bromo (Br) is a chemical element with atomic number 35. It is a liquid at standard temperature and pressure, classified as a halógeno.
What are the key properties of Bromo?
Bromo has an atomic mass of 79.904 u, density of 3.1028 g/cm³, melting point of -7.3°C, boiling point of 58.9°C.
What is the electron configuration of Bromo?
The electron configuration of Bromo is [Ar] 3d10 4s2 4p5. It is in the p-block of the periodic table.
Who discovered Bromo?
Bromo was discovered by Antoine Jerome Balard in 1826.
What is the electronegativity of Bromo?
Bromo has an electronegativity of 2.96 on the Pauling scale.