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प्रश्न
Give two examples of the following.
Inert gases
उत्तर
Helium, Neon
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संबंधित प्रश्न
Name: a Metal Which is a Poor Conductor of Electricity.
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Give two examples of the following.
Metals which are soft
Find the atomicity of the Following molecule:
Aluminium Suiphide
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
With reference to elements – define the term ‘molecule’. Give two examples each of a monoatomic, diatomic & polyatomic molecule.
What are elements? What are they made of?
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
