Buda Academic Chemistry: CH 7- Ionic Compounds

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16 Terms

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octet rule

atoms tend to gain, lose, or share electrons in order to acquire eight valence electrons

<p>atoms tend to gain, lose, or share electrons in order to acquire eight valence electrons</p>
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chemical bond

the force that holds two atoms together; may form by the attraction of a positive ion for a negative ion or by sharing electrons.

<p>the force that holds two atoms together; may form by the attraction of a positive ion for a negative ion or by sharing electrons.</p>
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cation

positively charged ion

<p>positively charged ion</p>
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anion

negatively charged ion

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compound

a chemical combination of two or more different elements

<p>a chemical combination of two or more different elements</p>
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ionic bond

the electrostatic force that holds oppositely charged particles together in an ionic compound

<p>the electrostatic force that holds oppositely charged particles together in an ionic compound</p>
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ionic compound

compounds that contain ionic bonds

<p>compounds that contain ionic bonds</p>
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formula unit (empirical Formula)

The simplest ratio of ions represented in an ionic compound.

<p>The simplest ratio of ions represented in an ionic compound.</p>
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monatomic ion

a one-atom ion, such as Mg^2 or Br^-

<p>a one-atom ion, such as Mg^2 or Br^-</p>
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polyatomic ion

ions made up of more than one atom bonded together that acts as a single unit with a net charge.

<p>ions made up of more than one atom bonded together that acts as a single unit with a net charge.</p>
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oxyanion

polyatomic ion composed of an element, usually a nonmetal, bonded to one or more oxygen atoms

<p>polyatomic ion composed of an element, usually a nonmetal, bonded to one or more oxygen atoms</p>
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covalent bond

A chemical bond that involves sharing a pair of electrons between atoms in a molecule

<p>A chemical bond that involves sharing a pair of electrons between atoms in a molecule</p>
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oxide

a binary compound of oxygen with another element or group. (MgO)

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salt

an ionic compound that forms when a metal atom bonds to nonmetal atom (CaCl2)

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oxidation number

Positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable

<p>Positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable</p>
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subscripts

tell the ratio of elements in a compound

<p>tell the ratio of elements in a compound</p>