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प्रश्न
State which element exists in the highest percentage in atmosphere.
उत्तर
Nitrogen (N) — 78%
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संबंधित प्रश्न
Give two symbols which have been derived from the "English names" of the elements.
State which element exists in the highest percentage in earth’s crust.
Give the symbol of the following element:
Phosphate
Write the radical of the following valency:
Zinc
Write the chemical formula of the following:
calcium sulphide
Write the chemical formula of the following:
aluminium chloride
Give the formula of the following acid:
Sulphuric
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
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).
Nitride
Give the qualitative and quantitative meaning of the term ‘symbol’.
