Section 2
Chemical Bonds
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Ions and Ionic Bonds
Ionic bonds are attractions between oppositely charged atoms or groups of atoms where electrons are donated and accepted.
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Covalent Bonds and Other Bonds and Interactions
Covalent bonds result from a sharing of electrons between two atoms and hold most biomolecules together.
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Hydrogen Bonding
A hydrogen bond is a strong intermolecular force created by the relative positivity of hydrogen atoms.
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Avogadro's Number and the Mole
The mole is represented by Avogadro's number, which is 6.02×1023 mol-1.
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Average Atomic Mass
The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance.