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प्रश्न
Symbol of mercury is
विकल्प
Ag
Hg
Au
Pb
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उत्तर
Hg
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संबंधित प्रश्न
What is the significance of the symbol of an element ? Explain with the help of an example.
An element which can exhibit valencies of 2, 4 and 6 can be :
An atom of an element is denoted by a “symbol”. Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Hydrogen by ‘H’
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
Give the symbol of the following element:
Lead
State the type of element for the following:
Arsenic
Give the symbol of the following element:
Nitrate
Write the radical of the following valency:
Oxygen
Write the radical of the following valency:
Phosphate
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).
Sulphite
