Topic Content:
- Writing Chemical Formulae
- Oxidation Numbers of Some Elements
- Formulae Containing Radicals
- Acid Radicals
- Oxidation Numbers of Radicals
Compounds are made up of molecules and the formula of a molecule of a compound is combined in correct proportions or valencies.
A chemical formula is defined as a collection of chemical symbol that is used to show the elements present in any compound and its proportion.
Writing Chemical Formulae:
In writing chemical formulae, valencyValency or Valence of an element is a measure of an atom's ability to combine with other atoms to create molecules or chemical compounds. More, which can be regarded as oxidation numbers, will be considered.
Valency is the combining power of an element.
The metals exhibit positive valency (oxidation number) because they give out electrons while non-metals exhibit negative valency (oxidation number) because they accept electrons.
Oxidation Numbers of Some Elements:
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