Question

Exception of metals and nonmetals class 8

Answer 1

1.all metals do not release hydrogen on acting with acids-gold,silver, platinum, copper
2.when metal is hit,it produces sound.Mercury is exception.
3.all metals are malleable.Mercury is exception.
4.metals are insoluble in water,but sodium and potassium react violently to form soluble hydroxides on contact with water.
5.diamond,a non metal is the hardest. potassium and sodium are so soft that they can be cut with a knife.
6.not only metals have metallic lustre but certain non metals like iodine and graphite have also a metallic lustre.

Answer 2

Answer:

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