Question

why electronegative elements do not form cation

Answer 1

b'coz electronegative elements have a tendency to gain electrons thats why they form anion...

Answer 2

Answer: Because they gain electrons to form anions.

Explanation: Electronegativity is the tendency of the element to attract the shared pair of electrons towards itself.

Thus electronegative elements tend to gain electrons and addition of electrons to a neutral atom result in the formation of negatively charged ions called anions.

For example, Chlorine is a electronegative element.

Electronic configuration of chlorine with 17 electrons.

$[Cl]:17:1s^22s^22p^63s^23p^5$

Chlorine atom will gain one electron to gain noble gas configuration and form chloride ion with -1 charge called as anion.

$[Cl^-]:18:1s^22s^22p^63s^23p^6$