Elements in group 1A are best describe as:
(i) Alkali Metals. Soft, silvery metals that react rapidly with water.
(ii) Halogens. Colorful, corrosive nonmetals.
(iii) Alkaline Earth Metals. Silvery meatls that are less reactive that alkali metals.
(iv) Noble Gases. Colorless gases with very low chemical reactivity.
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