Metal:
Metals are a group of chemical elements that are typically solid, shiny, malleable, and good conductors of heat and electricity. They are found on the left side and in the middle of the periodic table. Metals have several distinguishing properties that set them apart from non-metals.

Properties of Metals:
Metals possess the following properties:

1. Shiny Appearance: Metals have a lustrous or shiny appearance, which is due to their ability to reflect light.

2. Malleability: Metals are malleable, meaning they can be hammered or pressed into various shapes without breaking or cracking.

3. Ductility: Metals are ductile, which means they can be drawn into thin wires without breaking.

4. Good Conductors of Heat and Electricity: Metals are excellent conductors of heat and electricity. This property makes them useful in electrical wiring and various other applications.

5. High Melting and Boiling Points: Most metals have high melting and boiling points, indicating their solid state at room temperature.

6. High Density: Metals are generally dense and heavy compared to non-metals.

7. Opaque: Metals are usually opaque, meaning they do not allow light to pass through them.

Examples of Metals:
Some common examples of metals include:

- Iron (Fe)
- Copper (Cu)
- Aluminum (Al)
- Silver (Ag)
- Gold (Au)
- Zinc (Zn)
- Tin (Sn)
- Lead (Pb)
- Nickel (Ni)

Non-Metal:
Non-metals are elements that possess properties opposite to those of metals. They are generally poor conductors of heat and electricity, and they lack the typical metallic luster. Non-metals are found on the right side of the periodic table.

Properties of Non-Metals:
Non-metals possess the following properties:

1. Dull Appearance: Non-metals have a dull or non-shiny appearance.

2. Brittle: Non-metals are usually brittle, meaning they are easily broken or shattered.

3. Non-Conductors: Non-metals are poor conductors of heat and electricity. They have low electrical and thermal conductivity.

4. Low Density: Non-metals have low density compared to metals.

5. Low Melting and Boiling Points: Most non-metals have low melting and boiling points, which means they exist in gaseous or liquid states at room temperature.

6. Transparency: Non-metals can be transparent, translucent, or opaque. Some non-metals like sulfur and phosphorus are transparent, while others like carbon and silicon are opaque.

Examples of Non-Metals:
Some common examples of non-metals include:

- Carbon (C)
- Oxygen (O)
- Nitrogen (N)
- Hydrogen (H)
- Sulfur (S)
- Phosphorus (P)
- Chlorine (Cl)
- Bromine (Br)
- Iodine (I)

In conclusion, metals and non