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प्रश्न
What does a chemical symbol represent?
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उत्तर
A chemical symbol is a shorthand method of representing an element.
Symbol of an element signifies:
- Name of the element.
- One atom of the element for example,
- The symbol O stands for the element of oxygen.
- One atom of oxygen.
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संबंधित प्रश्न
The atoms of which of the following pair of elements are most likely to exist in free state ?
Fill in the blank:
Dalton used symbol _____ for oxygen and _____ for hydrogen.
Explain the terms ‘chemical formula’.
For writing a chemical formula – ‘symbols’ and combining capacity of an element with hydrogen i.e. ‘valency’ should be known. Explain the term – combining the capacity of an element i.e. valency.
Write the radical of the following valency:
Hydroxide
Write the radical of the following valency:
Potassium
Give the formula of the following gas:
Hydrogen chloride
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Aluminate
Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium
Write the constituent elements and their symbols for the following compounds.
- Carbon monoxide
- Washing soda
