Homework answers / question archive /   an electron in the highest occupied energy level of an atom a notation that depicts valence electrons as dots around the atomic symbol of the element; the symbol represents the inner electrons and atomic nucleus; also called Lewis dot structure chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet of electrons in its highest occupied energy level a negative ion formed when a halogen atom gains an electron a compound that consists of positive and negative ions the electrostatic force that holds oppositely charged particles together in an ionic compound an expression that indicates the number and type of atoms present in the smallest representative unit of a substance

  an electron in the highest occupied energy level of an atom a notation that depicts valence electrons as dots around the atomic symbol of the element; the symbol represents the inner electrons and atomic nucleus; also called Lewis dot structure chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet of electrons in its highest occupied energy level a negative ion formed when a halogen atom gains an electron a compound that consists of positive and negative ions the electrostatic force that holds oppositely charged particles together in an ionic compound an expression that indicates the number and type of atoms present in the smallest representative unit of a substance

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1. an electron in the highest occupied energy level of an atom
2. a notation that depicts valence electrons as dots around the atomic symbol of the element; the symbol represents the inner electrons and atomic nucleus; also called Lewis dot structure
3. chemical compounds tend to form so that each atom, by gaining, losing, or sharing electrons, has an octet of electrons in its highest occupied energy level
4. a negative ion formed when a halogen atom gains an electron
5. a compound that consists of positive and negative ions
6. the electrostatic force that holds oppositely charged particles together in an ionic compound
7. an expression that indicates the number and type of atoms present in the smallest representative unit of a substance.
8. the lowest whole-number ratio of ions in an ionic compound; in magnesium chloride, the ratio of magnesium ions to chloride ions is 1:2 and the formula unit is MgCl2
9. the number of ions of opposite charge that surround each ion in a crystal.
10. the force of attraction that holds metals together; it consists of the attraction of free-floating valence electrons for positively charged metal ions
11. a mixture composed of two or more elements, at least one of which is a metal.