He realized that the physical and chemical properties of elements<span> were related to their atomic mass in a '</span>periodic<span>' way, and </span>arranged<span> them so that groups of </span>elements<span> with similar properties fell into vertical columns in </span>his table<span>.
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I think its becuse the shoreline is shalow water that is warmed by the sun? ...... I may be rong
Mg3N2 is Magnesium nitride
