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प्रश्न
State which element exists in the highest percentage in human body.
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उत्तर
Oxygen (O) – 65%
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संबंधित प्रश्न
Define: Compounds
Out of ozone, phosphorus, sulphur and krypton, the elements having the lowest and highest atomicities are respectively :
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Write the formula of it
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Give the symbol and the number of atoms of the following elements present in sodium chloride.
Write the radical of the following valency:
magnesium
Define the term ‘valency’.
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).
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What does the symbol '(g)' present in a chemical equation, mean?
Which of the following symbols of elements are incorrect? Give their correct symbols
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- Carbon c
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What is the expansion of IUPAC.
