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प्रश्न
What do you understand by :
Noble gases
उत्तर
Noble gases : Noble gases are those which do not react chemically with other elements or compounds e.g. helium, neon, etc.
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संबंधित प्रश्न
What do the following symbol stand for?
H2
Fill in the blank:
Dalton used symbol _____ for oxygen and _____ for hydrogen.
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’
Give the symbol and the number of atoms of the following elements present in water.
Give the symbol of the following element:
Lead
Give the symbol of the following element:
Iodine
State the type of element for the following:
Oxygen
Write the radical of the following valency:
Oxygen
Write the radical of the following valency:
Iodine
What is the significance of the symbol of an element?
