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प्रश्न
Explain the difference between Atoms and molecules.
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उत्तर
| Atoms | Molecules | |
| 1 | Atoms are the smallest particles of an element that can participate in a chemical reaction. | Molecules are the smallest parts of an element or compound, which exist independently. |
| 2 | They do not break up during chemical reactions. | They break up during chemical reactions. |
| 3 | They may or may not exist in a free state. | They exist in free forms. |
संबंधित प्रश्न
Define: Compounds
Complete the statement – an element is a pure substance made up of ____________ atoms.
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
Define the terms elements, compounds & mixtures with a view to show their basic difference.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Higher Order Thinking Skills.
List out the metals, non-metals and metalloids which you use in your house, schools. Compare their properties.
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
Reason out
Elements are called semimetals.
Name the element which is used in toothpaste to strengthen our teeth.
