Which statement is true about ionic compounds?


AThey are made up of many large molecules that are bonded together.
BThey are made up of atoms of only one type of element.
CThey are made up of particles that are arranged in a repeating pattern.
DThey are made up of a random ratio of elements that are bonded together.

Verified Answer :

Final answer:

Ionic compounds are correctly described as consisting of particles arranged in a repeating pattern, commonly known as a crystal lattice structure. They exhibit properties like high melting points and electrical conductivity when in solution. Misconceptions include the idea that they are made up solely of one type of element or random ratios of elements.


Explanation:

Ionic Compounds: Structure and Characteristics

Ionic compounds are chemical compounds formed through the transfer of electrons from one atom to another, typically between a metal and a non-metal. The correct statement about ionic compounds is that they are made up of particles that are arranged in a repeating pattern. This unique arrangement is called a crystal lattice structure, which contributes to several important properties of ionic compounds.

Characteristics of Ionic Compounds

  • High Melting and Boiling Points: Due to the strong electrostatic forces between the charged ions in the lattice structure.
  • Electrical Conductivity: Ionic compounds conduct electricity when dissolved in water or melted, as the ions are free to move and carry charge.
  • Solubility: Many ionic compounds are soluble in water, which allows them to dissociate into their constituent ions.

In contrast, the incorrect statements mentioned that ionic compounds consist of only one type of element or large molecules bonded together, both of which do not accurately reflect the nature of ionic compounds.


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