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| A compund that contains only two different elements. |
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| A compound which contains a metallic cation and a nonmetallic anion and only contains two different elements. |
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| A three-dimensional geometric arrangement of particles. Each positive ion is surrounded by negative ions and each negative ion is surrounded by positive ions. Tha atoms are localized and not malleable. |
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| Melting point, boiling point, and hardness are all _____________ which depend on how strongly the particles are attracted to each other. |
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| An ionic compound whose aqueous solution conducts an electric current. |
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| When energy is absorbed during a chemical reaction. |
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| When energy is released during a chemical reaction. |
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| The amount of energy that is required to separate one mole of the ions of an ionic compound. |
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| The simplest ratios of the ions represented in an ionic compound. |
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| A one-atom Ion. Example: Mg2 |
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| The charge of a monatomic ion. |
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| Ions made up of more than one atom. |
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| A polyatomic ion composed of an element, usually a nonmetal, bonded to one or more oxygen atoms. |
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| Model that proposes that all the metal atoms in a metallic solid contribute their valence electrons to form a sea of electrons. |
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| Electrons that are free to move |
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| The attraction of a metallic cation for delocalized electrons. |
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| A mixture of elements that has metallic properties. |
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| Alloy that has atoms of the original metalic solid replaced by other metal atoms of similar size. Examples: sterling silver (When copper replaces the silver atoms in the original metallic crystal). |
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| Alloys that are formed when the small holes in a metallic crystal are filled with smaller atoms. Example: Carbon Steel (holes in the iron crystals are filled with carbon atoms, and the physical properties of iron are changed). |
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| A chemical bond that results from the sharing of valence electrons. Generally occurs when elements are relatively close to eachother on the periodic table. |
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F2, Cl2, Br2, I2, H2, N2, O2
Are examples of ________ molecules. |
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| Unshared Pairs of electrons in a covalent bond. |
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| Another name for single covalent bonds. |
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| A bond formed when parallel orbitals overlap to share electrons. The shared electrons of a pi bond occupies the space above and below the line that represents where the two atoms are joined. |
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| The distance between the two bonding nuclei at the position of maximum attraction. |
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