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प्रश्न
What is the difference between the molecule of an element and the molecule of a compound? Give one example of each.
What is the difference between the molecules of elements and compounds?
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उत्तर
| Molecule of an element | Molecule of a compound | |
| 1. | It consists of two or more atoms of the same element chemically bonded together. | It consists of two or more atoms of different elements chemically bonded together. |
| 2. | Example: Bromine exists in nature as a diatomic element (Br2), wherein two bromine atoms are covalently bonded to give a molecule of bromine. | Example: A molecule of nitric acid, HNO3, comprises one atom of hydrogen, one atom of nitrogen and three atoms of oxygen chemically bonded together. |
संबंधित प्रश्न
Write down the name of a compound represented by the following formula:
KNO3
Write down the name of a compound represented by the following formula:
CaCO3
Define: Atomic number
The cation of an element has :
Molecular compounds are usually formed by the combination between :
An element A forms an oxide A2O5.
What is the valency of element A ?
Correct the following statement:
A molecule of sulphur is monoatomic.
Why are the symbols and formulae of substances important?
State the main points of the contradiction of Dalton’s atomic theory by the Modern Atomic Theory.
If a molecule is made of similar kinds of atoms, then it is called ______ atomic molecule.
