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प्रश्न
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).
Plumbite
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उत्तर
| Name | Symbol | Ion | Valency |
| Plumbite | \[\ce{PbO2}\] | \[\ce{[PbO2]^{2-}}\] | −2 |
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संबंधित प्रश्न
Define: Elements-
Explain the significance of the symbol H.
Out of ozone, phosphorus, sulphur and krypton, the elements having the lowest and highest atomicities are respectively :
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Copper by ‘Cu’
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
State the type of element for the following:
Chlorine
Give the formula of the following gas:
Nitric oxide
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
What is meant by the term ‘symbol’?
What is the rarest natural element on the earth?
