Some radicals and their chemical symbols are listed below. Radical, also called Free Radical, in chemistry, molecule that contains at least one unpaired electron. In 1637 Descartes was the first to unite the German radical sign √ with the vinculum to create the radical symbol in common use today. Radical sign definition is - the sign √͞ or √ placed before an expression to denote that the square root is to be extracted or that the root marked by an index (as in ∛ or ∛ for the cube root) is to be extracted. Radicals or ions are formed by losing or gaining electrons. When the radical symbol is used to denote any root other than a square root, there will be a superscript number in the 'V'-shaped part of the symbol. When an electron is gained the group of atoms acquire a negative charge and is called a negative radical or negative ion. A radical is a group of atoms of elements, e.g., chromate radical [CrO 4]. Valency Some radicals and their chemical symbols are listed below. Radical sign definition, the symbol √ or indicating extraction of a root of the quantity that follows it, as √25=5 or . The symbol was first seen in print without the vinculum (the horizontal "bar" over the numbers inside the radical symbol) in the year 1525 in Die Coss by Christoff Rudolff, a German mathematician. Most molecules contain even numbers of electrons, and the covalent chemical bonds holding the atoms together within a molecule normally consist of pairs of electrons jointly … Radicals or Ions: A radical is a group of atoms of elements carrying a charge, e.g., chlorate [ClO 3 –]. See more.
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