81 Tl Talio 204,38 u

Talio

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Período
6
Grupo
13
Bloque
p-bloque
Fase (STP)
Solid

El talio es un metal post-transición blando y muy tóxico. Se usa en electrónica y óptica, y antiguamente se empleaba como raticida.

Acerca de Talio

Atomic number 81 places thallium in the sixth period of the p-block, where the configuration [Xe] 4f14 5d10 6s2 6p1 leaves three electrons outside a filled 5d shell. The relative atomic mass is 204.38 and the Pauling electronegativity 1.62. It is a soft post-transition metal, solid at standard temperature and pressure, sitting in group 13 directly beneath indium. Acute toxicity governs how the element is handled: thallium compounds were once marketed as rat poison, a use later withdrawn across most jurisdictions. Present-day demand comes instead from electronics and from optical components, where the heavy, polarisable thallium ion gives useful transmission behaviour. The combination of low mechanical hardness and high toxicity makes it one of the more hazardous of the heavy main-group metals.

Propiedades físicas

Masa atómica 204.38 u
Fase a STP Solid

Propiedades electrónicas

Electronegatividad 1.62

Configuración electrónica

Configuración [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹

Configuración de capas electrónicas

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

Posición en la tabla periódica

Posición de Talio en la tabla periódica Tl

Bloque y período

Bloque

s p d f

Período

1 2 3 4 5 6 7

Tabla Periódica

Lantánidos Actínidos

Más Metal Post-Transición

13 Al Aluminio 31 Ga Galio 49 In Indio 50 Sn Estaño 82 Pb Plomo 83 Bi Bismuto 84 Po Polonio

Frequently Asked Questions

What is Talio?
Talio (Tl) is a chemical element with atomic number 81. It is a solid at standard temperature and pressure, classified as a metal post-transición.
What are the key properties of Talio?
Talio has an atomic mass of 204.38 u.
What is the electron configuration of Talio?
The electron configuration of Talio is [Xe] 4f14 5d10 6s2 6p1. It is in the p-block of the periodic table.
What is the electronegativity of Talio?
Talio has an electronegativity of 1.62 on the Pauling scale.