Question

Write differences between metals and non metals ?​

Answer 1

Majority elements in the periodic table are metals. This includes alkali metals, transition metals, lanthanides, actinides and alkaline earth metals. Metals are separated by nonmetals on a periodic table through a zigzag line starting from carbon, till radon. The elements between the two are phosphorus, selenium and iodine.

Non-metals occupy the upper right-hand portion of the periodic table. Considering the properties of non-metals it is not shiny, malleable or ductile nor are they good conductors of electricity. These properties of non-metals provide one means by which we can distinguish metals from non-metals.

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Answer 2

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difference between metals and non-metals:-

difference on the basis of physical properties :-

METALS:-

1) all metals are solid at room temperature except mercury, which is a liquid at room temperature.

2) all metals are lustrous.

3) metals have high densities except lithium, soduim and potassium.

4) metals are malleable (can be beaten into thin sheets)

5) metals are ductile (can be drwn into).

6) they are good conductors of heat and electricity.

7) they have high melting point.

NON-METALS :-

1) non-metals exists as solid, liquid and gas.

silicon is a solid, bromine is a liquid and oxygen is a gas.

2) non-metals are non-lustrous.

3) they have low density.

4) they are non-malleable.

5) they have low melying and boiling point.

6) they are poor conductors of heat and electricity.

7) they are non-ductile.

difference on the basis of chemical properties :-

METALS :-

1) Metals react with non-metals to form ionic compounds.

eg:- 2Na + Cl₂ → 2NaCl

2) metals combine with oxygen to form metal oxides which are basic in nature.

eg:- 2Mg + O₂ → 2MgO

NON-METALS:-

1) non-metals form covalent bonds.

2) non-metals dissolve in water to form acidic solutions.

eg:- SO₂ + H₂O → H₂SO₃

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