Advertisements
Advertisements
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.
Copper by ‘Cu’
Advertisements
उत्तर
Symbols: The short form or abbreviated name of the element (or radicals) The reason for representing the following element by their symbol is as follow:
Copper by ‘Cu’ – Deriving symbols from their Latin names
संबंधित प्रश्न
Give two examples of the following :
Solid + Solid mixture
State the type of element for the following:
Calcium
Write the radical of the following valency:
Sodium
Write the radical of the following valency:
Hydroxide
Give the formula of the following gas:
Hydrogen chloride
Give the formula of the following gas:
Nitric oxide
Give the formula of the following gas:
Sulphur dioxide
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).
Chloride
State why the molecular formula of zinc carbonate is ZnCO3 .
What does the symbol '(l)' present in a chemical equation, mean?
