What is the difference between electrovalency and valency?Explain with example
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Electrovalency means the ability of an atom to attract a shared pair of electron towards itself...while valency is the outermost electron of atom ...
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Covalency:
(a)The number of electrons that an atom can shared to get stable electronic configuration is called it covalency.
(b) The presence of unpaired electron causes it.
(c) The bond formed is covalent in nature.
Ex: In order to get stable Neon gas configuration Carbon shares its four valence electrons. Thus its covalency is 4.
Electrovalency:
(a)The number of electrons lost or gained by an atom to get stable electronic configuration.
(b) Inert pair effect and the energy differences between the ns and (n-1)d subshells causes it.
(c) The bond formed is ionic in nature.
Ex: In getting Neon gas configuration Sodium (Na) loses one electron to Chlorine.
Thus electrovalency of Sodium is 1.
(a)The number of electrons that an atom can shared to get stable electronic configuration is called it covalency.
(b) The presence of unpaired electron causes it.
(c) The bond formed is covalent in nature.
Ex: In order to get stable Neon gas configuration Carbon shares its four valence electrons. Thus its covalency is 4.
Electrovalency:
(a)The number of electrons lost or gained by an atom to get stable electronic configuration.
(b) Inert pair effect and the energy differences between the ns and (n-1)d subshells causes it.
(c) The bond formed is ionic in nature.
Ex: In getting Neon gas configuration Sodium (Na) loses one electron to Chlorine.
Thus electrovalency of Sodium is 1.
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