Question

which choices are physical properties describing an ionic compound? (select all that apply.) maleable and ductile high melting and boiling points crystal structure hard and brittle

Explanation:

Ionic compounds have strong electrostatic forces between ions. This leads to high melting and boiling points, a regular crystal - lattice structure, and they are hard and brittle. Malleability and ductility are properties of metals, not ionic compounds.

Answer:

B. high melting and boiling points
C. crystal structure
D. hard and brittle