The physical and chimical properties of elements belonging to the same group are similar. why? Give two reasons.
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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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It is same
- The number of valence electrons are same.
- Also it says about the reactivity of metals.
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