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प्रश्न
State which element exists in the highest percentage in atmosphere.
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उत्तर
Nitrogen (N) — 78%
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
Give the symbol and the number of atoms of the following elements present in water.
Give the symbol of the following element:
Boron
Give the symbol of the following element:
Magnesium
Write the radical of the following valency:
Sulphur [Sulphide]
Give the formula of the following acid:
Nitric
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).
Sulphate
Fill in the blank with the correct word from the options given below:
A symbol represents a short form of a / an ________.
The chemical symbol for sodium is
