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प्रश्न
There are ______ number of known elements.
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उत्तर
There are 118 number of known elements.
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संबंधित प्रश्न
Define the term: Element
Name: a Non-metal Which is a Good Conductor of Electricity.
Give two examples of the following.
Non-metals which are lustrous
Give two examples of the following.
Elements which are liquids
Give reason: A frying pan is made up of steel but its handle is made up of wood.
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
Tick (√) the correct alternative from the choice given for the following statement
A non-metal which is a good conductor of electricity.
Classify substances into pure and impure substances in the form of a chart or tabulation.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
______ is a mixture of gases.
