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प्रश्न
Give the symbol and the number of atoms of the following elements present in sodium chloride.
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उत्तर
Sodium Chloride
| Elements | Symbols |
| (Sodium) | Na |
| [Chlorine(Chloride)] | Cl |
No. of atoms of this element present
1 atom of - Na, 1 atom of - Cl
संबंधित प्रश्न
Write the names of following elements Na, C, Kr, U, Ra, Fe, Co.
Give the names and symbols of five familiar substances which you think are elements.
An element which can exhibit valencies of 2, 4 and 6 can be :
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
Give the symbol of the following element:
Platinum
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
Write the chemical formula of the following:
calcium sulphide
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).
Bisulphite
Write a note on Greem symbols.
