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प्रश्न
Explain the term ‘symbol’.
उत्तर
Symbol is a short form or abbreviated name of the element.
OR
“Symbol of an element is the ‘first letter’ or the ‘first letter and another letter’ of the English name or Latin name of the element”.
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संबंधित प्रश्न
Write the molecular formula of the following compounds of Sulphur trioxide.
Find the number and names of elements present in them and calculate their molecular masses.
Write the molecular formula of the following compounds of Ammonia
Find the number and names of elements present in them and calculate their molecular masses.
Write the molecular formula for the oxide and sulphide of following elements of Sodium.
Write the molecular formula for the oxide and sulphide of following elements of Calcium
Write the molecular formula for the oxide and sulphide of following elements of Hydrogen
The valency of aluminium is 3. Write the valency of other radicals present in the following compounds of Aluminium chloride.
What is variable valency ? Give two examples of elements showing variable valency.
Write the molecular formulae of Iron (II) sulphide.
Write the molecular formulae of Hydrogen nitrate (nitric acid).
Write the chemical formula of the following compound in a step-by-step manner –
Iron [II] hydroxide
