Topic 2 - IONIC Bonding (III) Flashcards

1
Q

What is ionic bonding?

A

Strong electrostatic attraction between opposite charged ions.

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2
Q

Why does ionic bonding happen with oppositely charged ions?

A

They are attracted to each other because of their opposite charges which bonds them to form an IONIC COMPOUND.

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3
Q

What happens when atoms gain electrons?

A

They become NEGATIVE IONS

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4
Q

What happens when atoms lose electrons?

A

They become POSITIVE IONS

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5
Q

What are the charges of Group 1, 2 and 3 metals?

A

+1
+2
+3

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6
Q

What is the charge of Ag? (silver)

A

Ag+

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7
Q

What is the charge of Fe II? (iron II)

A

Fe2+

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8
Q

What is the charge of Fe III? (iron III)

A

Fe3+

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9
Q

What is the charge of Pb? (lead)

A

Pb2+

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10
Q

What is the charge of Zn? (zinc)

A

Zn2+

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11
Q

What is the charge of H? (hydrogen)

A

H+

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12
Q

What is the charge of NO4? (ammonia)

A

NO4+

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13
Q

What are the charges of Group 5,6 and 7 non-metals?

A
  • 3
  • 2
  • 1
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14
Q

What is the charge of OH? (hydroxide)

A

OH-

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15
Q

What is the charge of CO3? (carbonate)

A

CO3(2-)

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16
Q

What is the charge for NO3? (nitrate)

A

NO3-

17
Q

What is the charge for SO4? (sulfate)

A

SO4(2-)

18
Q

What are the characteristics of ANIONS?

A
  • electrons are negative particles
  • when an atom gains an electron it becomes (+) negative
  • non-metals usually gain electrons
  • negative ions are called anions
19
Q

What are the characteristics of CATIONS?

A
  • electrons are positively charged particles
  • when an atom loses an electron it becomes (-) positive
  • metals usually lose electrons
  • positive ions ared called cations
20
Q

Why do compounds with giant ionic lattices have high melting and boiling points?

A

Because they have a GIANT STRUCTURE with STRONG ELECTROSTATIC FORCES beween the oppositely charged ions that REQUIRE A LOT OF ENERGY TO BREAK.

21
Q

When do ionic compounds conduct electricity?

A

Conduct electricity when molten or in a solution

DONT CONDUCT ELECTRICITY WHEN SOLID.