Question

Write any five exceptions of metals and non-Metals.​

Answer 1

Answer:

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Explanation:

1.0 Lustre: Not only metals have metallic lustre but certain non-metals like iodine and graphite have also a metallic lustre.

2.0 Melting point: Some metals like sodium potassium have low melting point, mercury is liquid at room temperature. Carbon a non-metal has a high melting point.

3.0 Density: Alkali metals have low density. Lithium has specific gravity of 0.53 whereas Iodine a non-metal has specific gravity of 4.9.

4.0 Conductivity: Not only metals are good conductor of electricity and heat but non-metals like graphite and gas carbon are also good conductor of heat and electricity. Some metals like Bismuth and Lead, are poor conductors of electricity.

5.0 Action with acids: All metals do not give off hydrogen by reaction with acids, e.g. Copper, mercury, Silver, Gold, Platinum etc.

6.0 Hardness: All metals are not very hard, e.g. Lead is a very soft metal. Diamond an non-metal is the hardest substance so far known to the man

Answer 2

Explanation:

Here is your answer buddy:

• Generally metals are solid, but mercury is a metal which is a liquid.
• Metals are usually hard, but sodium and potassium are so soft, they can be cut with a knife.
• Non-metals are generally bad conductors of electricity but graphite is a good conductor of electricity.
• Non-metals are not lustrous, but iodine and graphite are lustrous.
• Non-metals are usually soft, but diamond is a non-metal which is the hardest natural substance and is also a good conductor of heat.