) students, particularly in Mexico and other Latin American countries, due to its specialized visual guide system. Designed by Arturo Morales RodrÃguez, a chemical engineer and professor at UNAM, this table stands out for its educational efficiency and intuitive organization. Why Students Choose the Arturo Morales Table
| Feature | Description | | :--- | :--- | | | "Tabla Periódica de los Elementos" (Often with a subtitle "Nivel Bachillerato") | | Color Palette | Pastel tones: Pink for Halogens, Blue for Noble gases, Green for Alkaline earths. | | Block Organization | Clearly separated s, p, d, and f blocks (Lantánidos y ActÃnidos placed below). | | Mass Format | Atomic mass is written above the symbol (contrary to many US tables). | | Valences | Listed as small superscripts (e.g., ±1, +2, +3, ±4). | | Electronegativity | Sometimes included as a subtle trend (Pauling scale) at the top of the column. | ) students, particularly in Mexico and other Latin
Diseñada para apoyo educativo en nivel bachillerato. Se recomienda usarla junto con prácticas de laboratorio y el plan de estudios vigente. | | Block Organization | Clearly separated s,
: Elements are classified into metals, non-metals, and metalloids, often using high-contrast colors for quick identification. | | Electronegativity | Sometimes included as a