An Atom is the basic building parts of everything a ion is a <span>molecule with a net electric charge and a isotope is energy ball of different number of protons and neutrons in the nuclei</span>
Nobody specifically made the periodic table but it was first thought of by Dmitri Mendeleev in 1869.
Blackberry - rabbit - snake - owl - hawk<span>
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Explanation:
there are 6 significant values
