Q31 of 203 Page 129

What is the atomicity of the following?

(a) Oxygen


(b) Ozone


(c) Neon


(d) Sulphur


(e) Phosphorus


(f) Sodium

(a) Oxygen -2

(b) Ozone-3


(c) Neon-1


(d) Sulphur-8


(e) Phosphorus-4


(f) Sodium-1


More from this chapter

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29

Name the elements represented by the following symbols:

Hg, Pb, Au, Ag, Sn

 30

What is meant by atomicity? Explain with two examples.

 32

What is meant by a chemical formula? Write the formulae of one element and one compound.

 33

Write the formulae of the following compounds. Also name the elements present in them.

(a) Water


(b) Ammonia


(c) Methane


(d) Sulphur dioxide


(e) Ethanol.