Question

write all the exceptions of metals and non metals.

Answer 1

Explanation:

1-Metals 2-Nonmetals

1These are solids at room temperature except mercury

2 These exist in all three states

1These are very hard except sodium

2 These are soft except diamond

1These are malleable and ductile

2 These are brittle and can breakdown into pieces

1These are shiny

2These are non-lustrous except iodine

1Electropositive in nature

2Electronegative in nature

1Have high densities

2Have low densities

Answer 2

Answer:

Explanation:

1.Metals have lustre, while non-metals graphite and iodine also have metallic shine

2.Sodium and potassium have low melting points. Mercury is liquid at room temperature. Carbon, a nonmetal, has high melting point. Bromine, a nonmetal, is liquid at room temperature.

3.Alkali Metals have high density, but Lithium density is 0.53. Iodine, a nonmetal, has density of 4.9

4.Graphite and carbon in gas form are good conductor of electricity. Metals Bismuth and lead are not good conductors.

5.Diamond, a nonmetal is the hardest material, and Potassium and sodium are so soft, they can be cut with knife.

6.All metals do not release hydrogen on acting with acids- gold, silver, copper, platinum.

7.If we consider minerals and compounds in nature, mica is very good conductor of heat, but bad conductor of electricity. As a rule, good conductors of electricity are also good conductors of heat.

8.When metal is hit , it produces sound. Mercury is exception.

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