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प्रश्न
Write the chemical formula of the following:
calcium sulphide
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उत्तर
CaS
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
Which particular atom of the above element is used for this purpose ?
Give the symbol of the following element:
Antimony
Give the symbol of the following element:
Bromine [bromide]
Give the formula of the following gas:
Ammonia
State the valency of the following metallic element and write symbol with the valency
Chromium
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
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).
Sulphide
The symbol of tungsten is _______.
Mass of one atom of oxygen is
