metals and non metals

#metals,#non-metals,#metalsdefinition, #whatismetal, #whatisnonmetal,#physicalpropertiesofmetals,physicalpropertiesofnonmetals, #chemicalpropertiesofmetals, #chemicalpropertiesofnonmetals, #usesofmetals,#simplephysics, #sciencequery
Metals
Definition Metals are those elements that are Hard, strong in nature. These are capable of bright, shiny, and light reflection. Relatively heavy in weight. Produces a metallic sound when hit. Produces alkaline oxides when reacts.
Physical properties of metals
1. Hardness
Most of the metals in the periodic table are hard, except sodium, potassium, lithium, etc.
2. Malleability
Metals can be beaten into thin sheets with a hammer. Because of the property, iron is used in making big ships.
3. Strength
Most of the metals are strong and have high tensile strength. Some of the metals are not strong. Such as sodium, potassium, etc.
4. Ductility
It can be drawn into wires. But all the metals are not equally ductile.
5. Density
Metals have high density and are very heavy. Iridium and osmium have the highest density and lithium have the lowest density.
6. Conduction
Metals have good conduction of heat and electricity. So the reason electric wires are made of metals like copper and aluminum.
7. Melting and boiling
Metals have high melting points and boiling points. Tungsten has the highest melting point and silver has a low boiling point.
8. Lustre
Metals have the quality of reflecting light from their surface. The property of metal having a shining surface is called “metallic luster”.
9. Physical state
Metals are solid at room temperature, except mercury. Mercury is liquid at room temperature.
Definition of non-metals
In chemistry, non-metals are the elements that have three properties of matter (solid, liquid, and gas) that are seen, which is neither bright nor shiny, cannot reflect light, are lightweight, and cannot conduct heat and electricity.
Examples of non-metals
Hydrogen, carbon, chlorine, nitrogen, bromine, neon, argon, sulfur, silicon, phosphorous, etc. are non-metals.
Physical properties of non-metals
1. Hardness
Most of the non-metals are generally soft. Sulfur and phosphorus are solid non-metals are quite soft. But one non-metal carbon (in the form of a diamond) is very hard.
2. Conduction
Non-metals cannot conduct heat and electricity. But some non-metals can conduct heat and electricity. For example, graphite and carbon non-metals can conduct heat and electricity.
3. Melting and boiling
Non-metals have low melting points and boiling points. But one non-metal has a high melting and boiling point. Diamond has high melting points and boiling points. The melting point of the diamond is, however, more than 3500°C, which is very high.
4. Lustre
Non-metals do not have luster. It means non-metals do not have a shining surface. The non-metals are dull. For example, sulfur and phosphorus have not lustered. That is they do not have a shining surface. But iodine is a non-metal, which has a shining surface.
5. Density
Non-metals have low densities are non-metals are light substances. Sulfur has a low density.
6. Ductility and malleability
Non-metals are neither malleable nor ductile. Non-metals are brittle, which means that non-metals break into pieces when hammered or stretched.
7. Sonority
Non-metals are non-sonorous. They do not produce sound when they are hit by other objects.
8. Physical state
Non-metals are solids, liquids, and gases at room temperature.
9. Strong
Non-metals are not strong.
10. Colour
Non-metals have many different colors.