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प्रश्न
Define the term ‘valency’.
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उत्तर
Valency is the number of hydrogen atoms which combine with (or displace) one atom of the element forming a Compound.
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संबंधित प्रश्न
A student wants to have 3.011 × 1023 atoms each of magnesium and carbon elements. For this purpose, he will have to weigh :
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Write the formula of it
Oxide
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Give the names and symbols of the first twenty elements of the periodic table.
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
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Write the radical of the following valency:
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Which letter is never used in any element symbol?
