Jane studies the properties of four ionic compounds: NaCl, KBr, Cas, and Mgo, as shown in the table.
Ionic Compound Elements and Their Properties
NaCl
Na - shiny, conductive
Cl- gas, nonconductive
K - shiny, conductive
KBr
Br - liquid, nonconductive
Cas
Ca - shiny, conductive
S - dull, nonconductive
MgO
Mg - shiny, conductive
0 - gas, nonconductive
What can she conclude about the elemental compositions of ionic compounds
A. They contain semimetallic and metallic elements.
B. They contain semimetallic and nonmetallic elements.
C. They contain metallic and nonmetallic elements.
D. They contain metallic and transition elements.