Question

an atom is electrically neutral but still it has a tendency to form an Ion

Answer 1

because an atom can easily lose or gain electrons which carry charge. therefore it becomes a charged ion

Answer 2

The elements have valence electrons. Metals have less valence electrons and give out the valence electrons to form cations to complete the outermost shell andattain nearest noble gas configuration. whereas, non metals have more valence electrons so they take electrons to form anions to complete the outermost shell and attain nearest noble gas configuration.