https://padlet.com/ocmarta/sofvjuxmtutn7oe8 Tabla periódica de los elementos en-us 2023-02-22 22:02:46 UTC 2023-02-22 23:14:57 UTC hello@padlet.com ocmarta https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491779611 La tabla periódica actual se compone de 118 elementos distribuidos en 7 filas horizontales llamadas periodos y 18 columnas verticales, conocidas como grupos. ]]> 2023-02-22 22:14:49 UTC https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491779611 ocmarta https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491783262 2023-02-22 22:20:25 UTC https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491783262 ocmarta https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491797378 Dmitri Mendeléyev publicó en 1869 la primera versión de la tabla periódica.]]> 2023-02-22 22:43:30 UTC https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491797378 ocmarta https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491803054 La mayor parte de los elementos químicos son metales.]]> 2023-02-22 22:52:44 UTC https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491803054 ocmarta https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491806261 2023-02-22 22:58:23 UTC https://padlet.com/ocmarta/sofvjuxmtutn7oe8/wish/2491806261