Question

Difference between Valency and Oxidation no.

Answer 1

VALENCY:-the valence or valency of anelement is a measure of its combining power with other atoms when it forms chemical compounds or molecules. The concept of valence developed in the second half of the 19th century and helped successfully explain the molecular structure of inorganic and organic compounds.[1] The quest for the underlying causes of valence led to the modern theories of chemical bonding, including the cubical atom (1902), Lewis structures (1916), valence bond theory (1927),molecular orbitals (1928), valence shell electron pair repulsion theory (1958), and all of the advanced methods of quantum chemistry.
OXIDATION NUMBER:-The oxidation number of an atom is zero in a neutral substance that contains atoms of only one element. Thus, the atoms in O2, O3, P4, S8, and aluminum metal all have an oxidation number of 0. 2. The oxidation number of simple ions is equal to the charge on the ion.

Answer 2

Hey mate......^_^


Here's ur ans. ,⬇


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↪ VALENCY ---

✡ Valency is combining capacity of an element .

✡ Valency is only a number and doesn't have position or negative sign .



↪ OXIDATION NO.

✡ Oxidation state is the charge of an atom combined with other atoms .

✡ Oxidation state is a charge and have positive , negative value and may be 0 .
Oxidation state may be different .


✌Hope it helps