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प्रश्न
Write the radical of the following valency:
magnesium
पर्याय
1+
2+
3+
1−
2−
3−
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उत्तर
2+
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संबंधित प्रश्न
Name the elements represented by the following symbols :
Hg, Pb, Au, Ag, Sn
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.
Helium by ‘He’
State the type of element for the following:
Calcium
State the type of element for the following:
Lead
Write the chemical formula of the following:
zinc oxide
State a reason why the symbol of calcium is ‘Ca’ and of copper is ‘Cu’
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).
Hydroxide
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
What is meant by the term ‘symbol’?
The symbol of tungsten is _______.
