Question

Match the following groups with their descriptions(1 point)
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Halogens
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Noble Gases
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Alkali Earth Metals
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Alkali Metals

Answer 1

Halogens — Group 17 nonmetals; very reactive, often form salts (e.g., F, Cl, Br, I).
Noble Gases — Group 18 inert gases; largely unreactive with full valence shells (e.g., He, Ne, Ar).
Alkali Earth Metals — Alkaline earth metals (Group 2); reactive metals with two valence electrons (e.g., Be, Mg, Ca).
Alkali Metals — Group 1 metals; very reactive, soft, one valence electron, react vigorously with water (e.g., Li, Na, K).