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प्रश्न
Complete the statement – an element is a pure substance made up of ____________ atoms.
पर्याय
identical
different
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उत्तर
An element is a pure substance made up of identical atoms.
संबंधित प्रश्न
Define mixture.
Name the technique that you use if only the solid component of a solution is required.
What is the difference between a pure substance and a mixture ?
Give Two Examples for Each of the Following: Inert Gases
Define: Formula
Fill in the blank
A diatomic gaseous element is _______.
Tick (√) the correct alternative from the choice given for the following statement
The hardest naturally occurring substance
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
Elements are made up of______ kinds of atoms.
