Here’s a explanation of metals, nonmetals, and metalloids:
1. Metals
- Location: Left and center of the periodic table
- Properties:
- Shiny (lustrous)
- Good conductors of heat and electricity
- Malleable (can be hammered) and ductile (can be drawn into wires)
- Usually lose electrons to form cations
- High melting and boiling points
- Examples: Iron (Fe), Copper (Cu), Aluminum (Al), Sodium (Na)
2. Nonmetals
- Location: Right side of the periodic table
- Properties:
- Dull appearance
- Poor conductors of heat and electricity (insulators)
- Brittle if solid
- Usually gain electrons to form anions
- Low melting and boiling points
- Examples: Oxygen (O), Nitrogen (N), Sulfur (S), Chlorine (Cl)
3. Metalloids (Semi-metals)
- Location: Along the stair-step line between metals and nonmetals
- Properties:
- Have both metallic and nonmetallic properties
- Can conduct electricity under certain conditions (semiconductors)
- Can be shiny like metals but brittle like nonmetals
- Examples: Boron (B), Silicon (Si), Arsenic (As), Tellurium (Te)
In short:
- Metals: shiny, malleable, conductors, lose electrons
- Nonmetals: dull, brittle, insulators, gain electrons
- Metalloids: in-between, semiconductors, mix of properties