# CT ![](https://i.imgur.com/dz5tWx8.png) Utilizar: https://www.rsc.org/periodic-table Usar los filtros de la tabla... ![](https://i.imgur.com/dLdrGLQ.png) ![](https://i.imgur.com/byi88gZ.png) ![](https://i.imgur.com/qNv1I76.png) Solución ![](https://i.imgur.com/GRYE3Da.png) ![](https://i.imgur.com/EksyMWk.png)