Solution

$$\text{Chlorine atom}$$ $$\text{Chloride ion}$$
In chlorine atom, there are $$17$$ protons and $$17$$ electrons
In chloride ion, there are $$17$$ protons and $$18$$ electrons
Chlorine atom is electrically neutral
Chloride atom is negatively charged
Chlorine atom is reactive.
Chloride ion is non-reactive
Chlorine is toxic, poisonous and used for bleaching and disinfectant.
Chloride is non-toxic and readily absorbed by plants