(a) State five characteristics of metals and five characteristics of non-metals.
(b) State five uses of metals and five uses of non-metals.
(a) State five characteristics of metals and five characteristics of non-metals.
(b) State five uses of metals and five uses of non-metals.
(a) The characteristics of metals
- good conductors of heat and electricity
- ductile (can be drawn into wires) and malleable (can be hammered)
- metals are solid at room temperature (except Mercury, it is a liquid state)
- high tensile strength
- usually lustrous/shiny
(b). The characters of non-metal are as follows.
- poor conductors of heat and electricity (except graphite).
- non-metals are brittle in nature
- non-metals are solid, gas at room temperature (except Bromine, it is a liquid state)
- Low tensile strength
- usually dull looking (except Diamond), do not show malleability and ductility.
Uses Of Metals:
★ -used in manufacturing automobiles, machinery, trains, satellites, aeroplanes, industrial gadgets.
★ -used in making wires, electrical appliances, circuits and many more.
★ -used in making utensils, water boilers.
★ - used to prevent the rust formation (Zinc is mainly used as a protective coat for iron).
★ - used in making thermometer (Hg).
Uses Of Non-Metals:
★ Oxygen is used for breathing.
★ Chlorine is used for purifying water.
★ Phosphorous is used in crackers.
★ Non - metals like nitrogen is used in fertilizers.
★ Iodine is used widely as an antiseptic which prevents the growth of the microorganism and used mainly to clean cuts and wounds.
(a) The characteristics of metals
- good conductors of heat and electricity
- ductile (can be drawn into wires) and malleable (can be hammered)
- metals are solid at room temperature (except Mercury, it is a liquid state)
- high tensile strength
- usually lustrous/shiny
(b). The characters of non-metal are as follows.
- poor conductors of heat and electricity (except graphite).
- non-metals are brittle in nature
- non-metals are solid, gas at room temperature (except Bromine, it is a liquid state)
- Low tensile strength
- usually dull looking (except Diamond), do not show malleability and ductility.
Uses Of Metals:
★ -used in manufacturing automobiles, machinery, trains, satellites, aeroplanes, industrial gadgets.
★ -used in making wires, electrical appliances, circuits and many more.
★ -used in making utensils, water boilers.
★ - used to prevent the rust formation (Zinc is mainly used as a protective coat for iron).
★ - used in making thermometer (Hg).
Uses Of Non-Metals:
★ Oxygen is used for breathing.
★ Chlorine is used for purifying water.
★ Phosphorous is used in crackers.
★ Non - metals like nitrogen is used in fertilizers.
★ Iodine is used widely as an antiseptic which prevents the growth of the microorganism and used mainly to clean cuts and wounds.
