Chapter 5: Ions & Ionic Compounds - Chemistry

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26 Terms

1

octet rule

a concept of chemical bonding theory that is based on the assumption that atoms tend to have either empty valence shells or full valence shells of 8 electrons

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2

ion

an atom, radical, or molecule, that has gained or lost one or more electrons and has a negative or positive charge

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3

cation

an ion that has a positive charge

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4

anion

an ion that has a negative charge

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5

salt

an ionic compound that forms when a metal atom or a positive radical replaces the hydrogen of an acid

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6

lattice energy

the energy released when ionic bonds are formed/when crystalline structure is formed

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7

crystal lattice

the regular pattern in which a crystal is arranged

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8

unit cell

the smallest portion of a crystal lattice that shows the 3D pattern of the entire lattice

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9

polyatomic ion

an ion made of two or more atoms

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10

true

True or false: Ionic compounds are made with a metal and a nonmetal

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11

false

True or false: Ionic compounds can conduct electricity as a solid

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12

true

True or false: ionic compounds have a high boiling/melting point

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13

electron affinity

the energy required to add an electron to a neutral atom

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14

formula unit

one part of an ionic bond

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15

CsBr

What is the chemical formula for cesium bromide?

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16

CoBr2

What is the chemical formula for cobalt(II) bromide?

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17

AlI3

What is the chemical formula for aluminum iodide?

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18

Copper(I) ion

Name the following: Cu+

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19

Phosphide ion

Name the following: P3-

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20

Iron(III) oxide

Name this compound: Fe2O3

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21

Sodium Iodide

Name the compound: NaI

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22

Chromium(III) Chloride

Name the compound: CrCl3

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23

Magnesium Nitride

Name the compound: Mg3N2

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24

Sodium Sulfate

Name the compound: Na2SO4

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25

KMnO4

write the chemical formula for Potassium Permanganate

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26

Al(OH)3

write the chemical formula for Aluminum Hydroxide

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