43 Tc Tecnecio 97,0 u

Tecnecio

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Período
5
Grupo
7
Bloque
d-bloque
Fase (STP)
Solid

El tecnecio fue el primer elemento producido artificialmente. Su isótopo Tc-99m se usa ampliamente en diagnóstico por imagen.

Acerca de Tecnecio

Technetium (Tc) holds a singular place in chemistry as the first element to be produced artificially, its name deriving from the Greek word for artificial. Element 43 sits in group 7 of period 5 in the d-block, with an atomic mass of 97 and the electron configuration [Kr] 4d⁵ 5s². Every isotope of technetium is radioactive, and the element has no stable form. Its most widely used isotope, technetium-99m, is a workhorse of nuclear medicine, employed in millions of diagnostic imaging procedures each year to visualize organs and detect disease. With a Pauling electronegativity of 1.9, technetium behaves as a typical transition metal, forming compounds across several oxidation states despite its scarcity in nature.

Propiedades físicas

Masa atómica 97.0 u
Fase a STP Solid

Propiedades electrónicas

Electronegatividad 1.9

Configuración electrónica

Configuración [Kr] 4d⁵ 5s²

Configuración de capas electrónicas

Configuración de capas electrónicas de Tecnecio Tc 2e⁻ 8e⁻ 18e⁻ 13e⁻ 2e⁻
Estructura de capas electrónicas de Tecnecio: electrones por capa.
Capa Electrones
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 13
5 (O) 2

Posición en la tabla periódica

Posición de Tecnecio en la tabla periódica Tc

Bloque y período

Bloque

s p d f

Período

1 2 3 4 5 6 7

Tabla Periódica

Lantánidos Actínidos

Reacciones con Tc

Desintegración gamma del tecnecio-99m

⁹⁹ᵐTc → ⁹⁹Tc + γ

Nuclear

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

Frequently Asked Questions

What is Tecnecio?
Tecnecio (Tc) is a chemical element with atomic number 43. It is a solid at standard temperature and pressure, classified as a metal de transición.
What are the key properties of Tecnecio?
Tecnecio has an atomic mass of 97.0 u.
What is the electron configuration of Tecnecio?
The electron configuration of Tecnecio is [Kr] 4d5 5s2. It is in the d-block of the periodic table.
What is the electronegativity of Tecnecio?
Tecnecio has an electronegativity of 1.9 on the Pauling scale.