Question

differentiate between metals and non-metals on the basis of chemichal properties​

Answer 1

ANSWER

Metals are electro-positive.

Non-metals are electronegative.

Metals reacts with oxygen to form basic oxides.

4Na+O 2→2Na 2O

Non-metals react with oxygen to form neutral or acidic oxide.

C+O 2 →CO 2

Metal oxides and hydroxides bonds have ionic bonds.

Non-metal oxides and hydroxides have covalent bonds.

Metals react with water to form hydroxide and hydrogen.

2Na+2H 2

O→2NaOH+H 2

Non-metals do not react with water.

Metals react with dilute acids to form salt and H

2

. Non-metals do not react with dilute acid and they can not displace hydrogen.

Metals react as reducing agent by donating electrons.

Na→Na + +e −

Non-metals are oxidizing agents that can gain the electrons.

Cl 2+e− →Cl −

Answer 2

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METALS

• ▪️They are melleable and ductile.
• ▪️They are good conductors of heat and electricity.
• ▪️They are sonorous.
• ▪️They are lustrous.
• ▪️They are hard.
• ▪️They are solid at room temperature.
• ▪️They have high density.
• ▪️They have high melting and boiling point.

Examples :−

• Copper, Aluminium, Calcium, Magnesium, Iron,etc.

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

NON−METALS

• ▪️They are neither melleable nor ductile.
• ▪️They are poor/bad conductors of heat and electricity.
• ▪️They are not sonorous.
• ▪️They are dull.
• ▪️They are soft.
• ▪️It may be solid,liquid or gas.
• ▪️They have low density.
• ▪️They have low melting and boiling point.

Examples :−

• Sulphur, Carbon, Oxygen, Phosphorus,etc.