Which physical properties can be used to differentiate between metals and non-metals?
Some physical properties that can be used to differentiate between metals and non-metals are:
1. Appearance: Metals tend to have a shiny, metallic luster, whereas non-metals can have various appearances such as dull or transparent.
2. Conductivity: Metals are generally good conductors of heat and electricity, whereas non-metals are poor conductors.
3. Malleability and Ductility: Metals are typically malleable (can be hammered into thin sheets) and ductile (can be drawn into wires), whereas non-metals are usually brittle and cannot be easily shaped in these ways.
4. Density: Metals generally have high densities, whereas non-metals tend to have lower densities.
5. Melting and Boiling Points: Metals generally have high melting and boiling points, whereas non-metals tend to have lower ones.
6. Magnetism: Some metals, such as iron, nickel, and cobalt, are magnetic, whereas non-metals are not.
It's important to note that these properties are not exclusive to either metals or non-metals and can vary depending on the specific element or compound being considered.