Ionic Compounds PDF
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Uploaded by RicherCarnelian1881
York University
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Summary
This document explains ionic compounds, detailing how atoms gain or lose electrons to form ions. It describes the formation of ionic bonds between metals and non-metals. The concept of a full valence shell, or octet, is also discussed.
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IONIC COMPOUNDS Recall: Atoms can gain or lose electrons in order to become stable. When an atom gains or loses electrons, they are called ions. When ions of elements come in contact with one another, they will react to form a new, more stable substance called an ionic compound. Ionic Compound:...
IONIC COMPOUNDS Recall: Atoms can gain or lose electrons in order to become stable. When an atom gains or loses electrons, they are called ions. When ions of elements come in contact with one another, they will react to form a new, more stable substance called an ionic compound. Ionic Compound: a compound formed when positive (cation) and negative (anion) ions join together. Atoms want to have a FULL valence shell in order to be stable (form a stable octet). This is accomplished by forming chemical bonds with other unstable atoms. To make compounds, atoms have to either LOSE or GAIN electrons. Because cations and anions have opposite charges, they are attracted to each other. This is called an ionic bond. An ionic bond occurs between metals and non-metals. It involves the transfer of electrons. For example, NaCl. Ionic Bond: a type of chemical bond that involves the transfer of electrons between oppositely charged ions. Ionic compounds contain millions of positive and negative ions attached together.
