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प्रश्न
Select the correct answer from the choice given below to complete the sentence :
An example of a monoatomic molecule is ___________.
विकल्प
hydrogen
helium
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उत्तर
An example of a monoatomic molecule is helium.
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संबंधित प्रश्न
Give two examples for the following: Metals
Write true or false
All pure substances have characteristic melting and boiling points.
Name: a non-metal which is lustrous
Name: Two substances used to make jewellery.
Tick (√) the correct alternative from the choice given for the following statement
The most ductile metal.
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal other than carbon that shows allotropy.
Name the constituents of water.
