Please get it cleared and stored into your cerebrum that a cation is formed when a neutral atom loses one or more electrons from its valence electron shell.
However too, on other hand an anion is formed when a neutral atom gains one or more electrons in its outermost electron shell.
A cation means a positive ion
An anion means a negative ion
What is electronegativity?
Electronegativity is one of physical periodicity and property of elements that describes the tendency of an atom to attract electrons toward itself.
Generally, electronegativity of an atoms of elements in a particular trend is affected by both its atomic number and the distance that its valence electrons reside from the charged nuclei.
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