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प्रश्न
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’
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उत्तर
Symbols: The short form or abbreviated name of the element (or radicals). The reason for representing the following element by its symbol is as follow:
Hydrogen by ‘H’ – First letter of the name of the element
संबंधित प्रश्न
The English name of an element is potassium, its Latin name will be :
Explain the terms 'valency' and 'variable valency'.
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
Give the symbol of the following element:
Aluminium
State the type of element for the following:
Zinc
Write the radical of the following valency:
Oxygen
Give the formula of the following gas:
Ammonia
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).
Bisulphite
Mass of one atom of oxygen is
