4. Yo momma studies the properties of four ionic compounds: NaCl, KBr, CaS, a lonic Compound Elements and Their Properties NaCl Na shiny, conductive; Cl- gas, nonconductive K-shiny, conductive; Br - liquid, nonconductive Ca - shiny, conductive; S- dull, nonconductive IMg- shiny, conductive; O-gas, nonconductive KBr CaS MgO What can she conclude about the elemental compositions of ionic compounds? A. They contain metallic and transition elements. B. They contain metallic and nonmetallic elements. C. They contain semimetallic and metallic elements. D. They contain semimetallic and nonmetallic elements.

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