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Joining of atoms to form a new substance. A chemical bond is a force of attraction that holds two atoms together.
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The electrons in the outermost energy level of an atom. These electrons are used to form bonds.
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Electons are transferred between two atoms. The atom that loses electrons becomes a positive ion. The atom that gains electrons becomes a negative ion. The force of attraction between these oppositely charged ions is an ionic bond.
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| Ionoic Bonds usually occure between... |
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Atoms of Metals and Nonmetals
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Energy is needed to remove electrons from metal atoms to form positive ions. Energy is released when most non-metal atoms gain electrons to form negative ions.
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Electrons are shared by two atoms. The force of attraction between the nuclei of the atoms and the shared electrons is a covalent bond. Usually occurs between atoms of nonmetals.
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Make molecules. Molecules are the smallest particle of a compound with the chemical properties of the compound.
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