79 Au Oro 196,97 u

Oro

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Período
6
Grupo
11
Bloque
d-bloque
Fase (STP)
Solid

El oro es un metal precioso muy apreciado por su belleza y su resistencia a la corrosión. Se usa en joyería, electrónica y como patrón monetario.

Acerca de Oro

Gold (Au) has been treasured across human cultures for its enduring luster and resistance to corrosion. Element 79 lies in group 11 of period 6 in the d-block, with an atomic mass of 196.97, the electron configuration [Xe] 4f¹⁴ 5d¹⁰ 6s¹, and the highest electronegativity in its group at 2.54. Chemically inert, gold neither tarnishes nor rusts, which preserves its brilliance indefinitely and underlies its historic role as a monetary standard. Beyond coinage and jewelry, its excellent conductivity and reliability make it essential in electronic connectors and microcircuitry. A soft, dense, yellow metal, gold is solid at standard conditions.

Propiedades físicas

Masa atómica 196.97 u
Fase a STP Solid

Propiedades electrónicas

Electronegatividad 2.54

Configuración electrónica

Configuración [Xe] 4f¹⁴ 5d¹⁰ 6s¹

Configuración de capas electrónicas

Configuración de capas electrónicas de Oro Au 2e⁻ 8e⁻ 18e⁻ 32e⁻ 18e⁻ 1e⁻
Estructura de capas electrónicas de Oro: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 18
6 (P) 1

Posición en la tabla periódica

Posición de Oro en la tabla periódica Au

Bloque y período

Bloque

s p d f

Período

1 2 3 4 5 6 7

Tabla Periódica

Lantánidos Actínidos

Reacciones con Au

Agua regia disolviendo oro

Au + 3HCl + HNO₃ → HAuCl₄ + NO + 2H₂O

Redox

Más Metal de Transición

21 Sc Escandio 22 Ti Titanio 23 V Vanadio 24 Cr Cromo 25 Mn Manganeso 26 Fe Hierro 27 Co Cobalto 28 Ni Níquel 29 Cu Cobre 30 Zn Cinc

Explorar en Science FYI

MineralFYI
Native Gold

Mineral de oro nativo

Frequently Asked Questions

What is Oro?
Oro (Au) is a chemical element with atomic number 79. It is a solid at standard temperature and pressure, classified as a metal de transición.
What are the key properties of Oro?
Oro has an atomic mass of 196.97 u.
What is the electron configuration of Oro?
The electron configuration of Oro is [Xe] 4f14 5d10 6s1. It is in the d-block of the periodic table.
What is the electronegativity of Oro?
Oro has an electronegativity of 2.54 on the Pauling scale.