Protactinio
| Protactinio | ||||||
|---|---|---|---|---|---|---|
| ||||||
| Información cheneral | ||||||
| Nombre, simbolo, numero | Protactinio, Pa, 91 | |||||
| Serie quimica | Actinido | |||||
| Grupo, periodo, bloque | 3, 7, f | |||||
| Color | metalica archentada brillant
| |||||
| Peso atomico | 231.04±0.01 g·mol−1 | |||||
| Configuración electronica | Rn 5f2 6d1 7s2 | |||||
| Electrons por capa | 2, 8, 18, 32, 20, 9, 2 | |||||
| Propiedaz fisicas | ||||||
| Fase | solido | |||||
| Densidat (a t.a.) | 15.37 g·cm−3 | |||||
| Punto de fusión | 1841 K (1568 °C, 2854 °F) | |||||
| Punto d'ebullición | 4300 K (4027 °C, 7280 °F) | |||||
| Entalpía de fusión | 12.34 kJ·mol−1 | |||||
| Entalpía de vaporización | 481 kJ·mol−1 | |||||
O protactinio[1] ye un elemento quimico d'a tabla periodica de simbolo Pa y de numero atomico 91. Estió descubierto en 1917 per Lise Meitner y Otto Hahn. O suyo nombre promana d'o griego protos "primer" y "actinio".
Referencias
- ↑ (an) Diccionario aragonés-castellano-catalán. Estudio de Filología Aragonesa. Edacar num. 14. Zaragoza. Edicions Dichitals de l'Academia de l'Aragonés. ISSN 1988-8139. Octubre de 2024 (accesible vía web).
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Datos: Q1109
Multimedia: Protactinium / Q1109
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