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प्रश्न
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
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उत्तर
Carbon Dioxide CO2
| Elements | Symbols |
| (Carbon) | C |
| [Oxygen (oxide)] | O |
No. of atoms of this element present
1 atom of - C, 2 atoms of - O
संबंधित प्रश्न
Give the symbols and valencies of following radicals:
(a) Hydroxide (b) Chloride
(c) Carbonate (d) ammonium
(e) Nitrate
Write the symbols of helium, silver, krypton, antimony, barium.
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Na1+ Cl1-
State which element exists in the highest percentage in earth’s crust.
Give the symbol of the following element:
Bromine [bromide]
State the type of element for the following:
Bromine
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 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).
Iodide
Name three metals whose symbols are derived from the first letter of the name of the element.
