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प्रश्न
Which particular atom of the above element is used for this purpose ?
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उत्तर
Carbon-12 atom is particularly used as a standard in the atomic mass scale.
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संबंधित प्रश्न
Select elements and compounds from the following list: Iron, plaster of paris, chalk, common salt, copper, aluminium, calcium oxide, cane sugar, carbon, silica, sodium sulphate, uranium, potassium carbonate, silver, carbon dioxide.
The anion of an element has ______.
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’
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Ca2+ NO31-
State which element exists in the highest percentage in human body.
State the type of element for the following:
potassium
Give the symbol of the following element:
Oxygen
Write the chemical formula of the following:
calcium carbonate
Give the formula of the following gas:
Sulphur dioxide
Name three metals whose symbols are derived: from their Latin names.
