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प्रश्न
Complete the statement given below by filling in the blank with the correct word.
The basic unit of an element is an __________.
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उत्तर
The basic unit of an element is an atom.
संबंधित प्रश्न
Define: Compounds
Name: a Liquid Non-metal
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Define a pure substance. How many types of pure substances do you know?
Give two examples of Metalloids.
Give two examples of the following.
Elements which are liquids
Fill in the blank
The most abundant element in the atmosphere is _______.
Select the correct answer from the choice given below.
The negatively charged particles in an atom
‘The modern periodic table consists of elements arranged according to their increasing atomic numbers’. With reference to elements with atomic numbers 1 to 20 only in the periodic table – differentiate them into – metallic elements, metalloids, non-metals & noble gases.
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 |
