Variable valency with 5 aexamples
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We know that the combining power or the combining capacity of an atom or an element is called its valency. The number of atoms of other elements with which one atom of an element combines is decided by the valency of that element.
Some elements however have changeable combining capacities i.e., they exhibit more than one valency. This is known as variable valency. For example
1) Iron (Fe) can show a valency of 2 and 3
2) Copper (Cu) can show a valency of 1 and 2
3) Phosphorus can show a valency of 3 and 5
4) Nitrogen can show a valency of 3 and 5.
Some elements however have changeable combining capacities i.e., they exhibit more than one valency. This is known as variable valency. For example
1) Iron (Fe) can show a valency of 2 and 3
2) Copper (Cu) can show a valency of 1 and 2
3) Phosphorus can show a valency of 3 and 5
4) Nitrogen can show a valency of 3 and 5.
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