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प्रश्न
Define the term ‘valency’.
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उत्तर
Valency is the number of hydrogen atoms which combine with (or displace) one atom of the element forming a Compound.
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संबंधित प्रश्न
Give two symbols which have been derived from the " Latin names" of the elements.
The symbol of a metal element which is used in making thermometers is :
Give the symbol of the following element:
Arsenic
State the type of element for the following:
Antimony
Give the symbol of the following element:
Sulphate
State the valency of the following metallic element and write symbol with the valency
Potassium
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).
Zincate
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).
Plumbite
Describe the different ways in which we can write the symbols of elements. Give appropriate examples.
Write the constituent elements and their symbols for the following compounds.
- Carbon monoxide
- Washing soda
