True in a crystal lattice each positive ion is surrounded by negative ions
Ions are electrically charged atoms or molecules. Anions have a negative charge while cations have a positive charge. When atoms receive or lose valence electrons, ions are created. Since electrons have a negative charge, an atom will become positively charged if it loses one or more electrons and negatively charged if it obtains one or more. The attraction between ions with opposite charges is known as ionic bonding. Ionic networks, also known as lattices, are formed when these oppositely charged ions attract one another.
For instance, each Cl atom steals an electron from a Na atom during the reaction of Na (sodium) and Cl (chlorine). As a result, every Na atom turns into a Na+ cation and every Cl atom becomes a Cl- anion. They form an ionic lattice because of the attraction between their opposing charges.
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