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प्रश्न
State a reason why the symbol of calcium is ‘Ca’ and of copper is ‘Cu’
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उत्तर
As the name calcium and copper start with same letter of English alphabet ‘C’ so another letter from the name of the element is added to ‘C’.
Hence symbol of calcium is ‘Ca’ and symbol of copper or cuprum (Latin name of copper) is ‘Cu’.
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संबंधित प्रश्न
Give two examples of the following :
Solid + Solid mixture
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
State the type of element for the following:
Oxygen
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
Write the radical of the following valency:
Calcium
Give the formula of the following gas:
Nitrogen
Define the term ‘valency’.
State the valency of the following metallic element and write symbol with the valency
Potassium
What does the symbol '(g)' present in a chemical equation, mean?
What is the significance of the symbol of an element?
