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Chemistry > Ionic Compounds > Flashcards

Ionic Compounds Flashcards

1
Q

4 Types of Ions

A

Monoatomic, Cations, Anions, Polyatomic

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2
Q

Monoatomic ions

A

consist of only one element

ex.) Na+, O2-

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3
Q

Polyatomic ions

A

tightly bound groups of atoms that behave as one unit and carry one charge

ex.) SO 4 2-
(whole thing has a charge of -2)

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4
Q

Metals form…

A

cations

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5
Q

Nonmetals form…

A

anions

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6
Q

Ionic bonds

A

attractions between positively and negatively charged ions

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7
Q

Example of an ionic compound

A

salt (sodium chloride)

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8
Q

What structure does sodium chloride form?

A

a lattice

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9
Q

An ionic formula consists of what charged ions?

A

Positively in the front and negatively after

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10
Q

An ionic formula is…

A

neutral

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11
Q

What is an ionic formula has what balance?

A

charge balance

total positive charge = total negative charge

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12
Q

How are Ionic Formulas formatted?

A

symbol of METAL written first followed by the symbol of the nonmetal/polyatomic atom

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13
Q

What ending do ionic formulas have?

A

-ide ending

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14
Q

What do subscripts in a charge balance indicate?

A

the NUMBER of ions needed to give charge balance

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15
Q

What is the charge balance of MgCl2?

A

2 Cl atoms gain 1 electron
1 Mg atom loses 2 electrons

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16
Q

What is the charge balance of Na2S?

A

1 S atom gains 2 electrons
2 Na atoms lose 1 electron

17
Q

How to name ionic compounds with two elements:

A
  1. Identify the cation and anion
  2. Name the cation first followed by the name of the anion
18
Q

What do common polyatomic anions end in?

A

-ate or -ite

19
Q

Positive polyatomic ions go _____

A

first in an ionic compound

20
Q

What is the difference between the -ate and -ite ending?

A

-ate = maximum number of oxygen
-ite = one less oxygen than the max

21
Q

Properties of an Ionic Compound (5)

A
  1. consists of + and - ions
  2. have ionic bonds
  3. have HIGH melting and boiling points
  4. are SOLID at room temp (forms crystals)
  5. can CONDUCT electricity in molten state or when dissolved in water

Chemistry (9 decks)

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