Question

Chemistry
Properties of Metals and
Non-Metals
Metals​

Answer 1

Answer:

metals: metals are electropositive in nature that is they have tendency to lose electrons and form catins

metals are lusturous (shiny appearance) eg Ag , Au ,Pt etc

metals are sonorous(make sound)

metals are malleable (beaten into sheets)

eg Fe, cu, etc

metals are ductile (drawn into wires) eg cu, ag etc

they are good conductors of heat and electricity for example Ag (silver) is the best conductor

metals have high density accept sodium and potassium. they are stored under kerosene. they are highly reactive

metals have high melting and boiling point except sodium potassium caesium and gallium

non metals: these are the elements that are electronegative in nature they have tendency to gain or accept electrons and form negatively charged ions.

non metals and non malleable

non metals are non ductile

nonmetals are poor conductors of heat and electricity except graphite

non metals are usually brittle

non metals usually exist in gaseous or liquid state

non metals have usually low density

I hope this is helpful.

Answer 2

Physical Properties of metals & non metals

METALS:

1. Solid state at room temperature. Exceptions: Hg, Cs, Ga, Fr.
2. High melting/boiling point. Exceptions: Na, K, Hg (W has the highest melting point)
3. Very hard (except Na, K, Hg)
4. Have metallic lustre due to oscillation of free electrons. Exception: Pb
5. Very malleable - can be converted to sheets. Au is the most malleable and Ag is the second most malleable.
6. Can be converted to wires (high ductility). Exceptions: Na, K, Hg (These are soft metals).
7. Can produce bell sound (sonority) because of free electrons. Exceptions: K, Pb, Na, Hg.
8. Not brittle.
9. Can conduct heat and electricity - the best conductor is Ag, the second best conductor is Cu and the third best conductor is Au.
10. Can form alloys and amalgams. (Iron and Platinum cannot form amalgam)

NON METALS:

1. They exist as solids, liquids and gases.
2. They have low melting/boiling point. Exceptions: Carbides of boron, silicon, diamond
3. They are not hard. Exception: diamond
4. They lack metallic lustre. Exceptions: Graphite, diamond, iodine
5. Not malleable
6. No ductility
7. No sonority
8. Brittle (except diamond)
9. Graphite is the only non-metal conductor.
10. Non metals cannot form alloys and amalgams