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प्रश्न
For writing a chemical formula – ‘symbols’ and combining capacity of an element with hydrogen i.e. ‘valency’ should be known. Explain the term – combining the capacity of an element i.e. valency.
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उत्तर
The combining power of an element especially as measured by the number of hydrogen atoms can combine or displace with the element.
संबंधित 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 :
Match the symbols of metallic elements – with their correct combining power or capacity.
(a) K
(b) Zn
(c) Al
(d) Na
(e) Ca
Combining power or capacity – A : 3 ; B : 2 ; C : 1. (positive valencies)
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:
Platinum
Write the radical of the following valency:
Aluminium
Write the radical of the following valency:
Oxygen
Write the radical of the following valency:
Sulphur [Sulphide]
State the valency of the following metallic element and write symbol with the valency
Potassium
What does the symbol '(l)' present in a chemical equation, mean?
Which letter is never used in any element symbol?
