Business, 29.01.2021 01:50 chrisroman152

How do properties of elements in the same group of the Periodic Table compare? I. Elements in the same group exhibit similar chemical reactivity

II. Elements in the same group have the same number of electron shells

III. Elements in the same period share similar physical properties

IV. Elements in the same group contain the same number of valence electrons

a- II, IV
b- I, II, IV
c- I, IV

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