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प्रश्न
The scientist who proposed the first letter (or first letter and another letter) of the Latin or English name of
an element as its symbol, was :
विकल्प
Dalton
Proust
Lavoisier
Berzelius
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उत्तर
Berzelius
Berzelius proposed the first letter (or first letter and another letter) of the Latin or English name of any element as its symbol.
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संबंधित प्रश्न
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Phosphate
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.
Helium by ‘He’
Give the symbol of the following element:
Carbon
Give the symbol of the following element:
Silicon
State the type of element for the following:
Fluorine
Give the symbol of the following element:
Hydroxide
Write the radical of the following valency:
Calcium
State the valency of the following metallic element and write symbol with the valency
Aluminium
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).
Bisulphite
How many elements are known at present?
