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प्रश्न
There are ______ number of known elements.
उत्तर
There are 118 number of known elements.
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संबंधित प्रश्न
Choose the most appropriate answer
A solvent of Iodine is
Fill in the blank
The most abundant element in the atmosphere is _______.
Indicate whether the following statement is true or false:
All elements are artificially prepared
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
Complete the statement given below by filling in the blank with the correct word.
An element is a pure substance which cannot be broken down by physical or _________ methods.
Select the correct answer from the choice given below.
An impure substance
Write the names of elements from the following symbol:
Xe
Differentiate between homogenous & heterogeneous mixtures.
Match the following.
| 1. | Element | Made up of molecules |
| 2. | Compound | Impure substance |
| 3. | Colloid | Settles down on standing |
| 4. | Suspension | Pure substance |
| 5. | Mixture | Made up of atoms |
How are elements classified?
