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प्रश्न
Symbol of mercury is
पर्याय
Ag
Hg
Au
Pb
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उत्तर
Hg
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संबंधित प्रश्न
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
Give the names and symbols of five familiar substances which you think are elements.
If the symbol for Cobalt, Co, were written as CO, what would be wrong with it?
Give the symbol and the number of atoms of the following elements present in water.
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
For writing a chemical formula – ‘symbols’ and combining capacity of an element with hydrogen i.e. ‘valency’ should be known. Explain the term – combining the capacity of an element i.e. valency.
State the valency of the following metallic element and write symbol with the valency
Zinc
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).
Bicarbonate
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).
Oxide
Define Alchemy.
