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प्रश्न
Name the element used as a standard for atomic mass scale.
एक पंक्ति में उत्तर
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उत्तर
Carbon is used as a standard in the atomic mass scale.
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संबंधित प्रश्न
What is a symbol? What information does it convey?
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
Match the non-metallic elements – with their correct symbols. Non-metallic elements are:
| Non-Metallic elements | Symbol |
| (a) Carbon | (1) O |
| (b) Chlorine | (2) I |
| (c) Oxygen | (3) Si |
| (d) Phosphorus | (4) C |
| (e) Hydrogen | (5) Cl |
| (f) Nitrogen | (6) P |
| (g) Iodine | (7) F |
| (h) Bromine | (8) H |
| (i) Fluorine | (9) S |
| (j) Silicon | (10) Br |
| (k) Sulphur | (11) N |
Give the symbol of the following element:
Oxygen
Give the symbol of the following element:
Radon
Give the symbol of the following element:
Magnesium
Write the radical of the following valency:
Sulphite
Give the formula of the following acid:
Nitric
State a reason why the symbol of calcium is ‘Ca’ and of copper is ‘Cu’
The name copper was taken from ______.
