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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
Define: Elements-
The English name of an element is potassium, its Latin name will be :
The atoms of which of the following pair of elements are most likely to exist in free state ?
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)
Write the radical of the following valency:
Calcium
Write the radical of the following valency:
Iodine
Give the formula of the following gas:
Sulphur dioxide
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
write symbol with the variable valency
State why the molecular formula of zinc carbonate is ZnCO3 .
What is the expansion of IUPAC.
