Ionic bonding occurs when electrons are transferred from one atom to another, creating positively charged cations and negatively charged anions. These
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How do you know if a compound is ionic?
A compound is likely ionic if it forms between a metal and a non-metal with a large electronegativity difference (usually > 1.7). Ionic compounds conduct electricity when melted or dissolved, form crystals, and have high melting points.
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Why do ionic compounds dissolve in water?
Water is highly polar; its polar molecules surround and separate the ions through hydration, overcoming the electrostatic attraction between cations and anions in the crystal lattice.
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Can a compound have both ionic and covalent bonds?
Yes. Calcium carbonate (CaCO3) has ionic bonds between Ca2+ and CO3-2, but the carbonate ion itself has covalent bonds between C and O atoms.
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