Which common property do all elements present in same period and in sa

1.	Which common property do all elements present in same period and in same group?
Answer» Elements in the same group in the periodic table have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. Group 1 elements are reactive metals called the alkali metals. Group 0 elements are unreactive non-metals called the noble gases.

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