A. Tick (/) the correct answer.
1. Out of the following, identify the monoatom
a. Chlorine
b. Hydroge
c.oxygen d.argon
2. Which of the following is tetra-atomic!
a. Sulphur
b. Phosphorusc. Nitrogen
d. Helium
3. There are about 118 different
a. elements
b. molecules
c. compounds
d. mixtures
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hydrogen first answer
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1. Hydrogen
2.Phosphorusc
3.Elements
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