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प्रश्न
How are the elements with variable valency named? Explain with an example.
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उत्तर
If an element exhibits two different positive valencies, then
- for the lower valency, use the suffix -OUS at the end of the name of the metal
- for the higher valency, use the suffix -IC at the end of the name of the metal.
Example:
|
Element |
Lower valency |
Higher valency |
|
Ferrum (Iron) |
Ferrous (Fe2+) |
Ferric (Fe3+) |
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संबंधित प्रश्न
Name the elements represented by the following symbols :
Hg, Pb, Au, Ag, Sn
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.
Hydrogen by ‘H’
Give the symbol of the following element:
Copper
State the type of element for the following:
Fluorine
Write the radical of the following valency:
magnesium
Name three metals whose symbols are derived from the first letter of the name of the element.
Give the qualitative and quantitative meaning of the term ‘symbol’.
What does the symbol '(s)' present in a chemical equation, mean?
What does the symbol '(l)' present in a chemical equation, mean?
The name copper was taken from ______.
