Question

what is meant by ionisation

Answer 1

metal pretend to give electrons and non metal pretend to recieve electron .this give and take of electron is called ionisation

Answer 2

it's simple the process in which an atom or a molecules gain or lose electron by valence is known as the ionization.
for ex the an aluminium atom has 13 electron when it losses it's 3 electron then it become a positively charged atom (ion) or cation.
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