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Chemistry > Metallic, ionic, simple molecular and giant covalent bonding > Flashcards

Metallic, ionic, simple molecular and giant covalent bonding Flashcards

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1
Q

what is the structure in metallic bonding?

A

giant lattice

(of positive metal ions* and a sea of delocalised electrons)

*positive metal ions = metal cations

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2
Q

what is the structure in ionic bonding?

A

giant lattice

(of metal and non-metal (ions))

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3
Q

what is the structure in simple MOLECULAR bonding?

(covalent)

A

molecules

(non-metals)

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4
Q

what is the structure like in GIANT covalent bonding?

(Diamond, graphite and silicone dioxide (sand))

A

giant lattice

(of non-metals)

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5
Q

electrostatic attraction / covalent bond between…

bond type and definition of metallic bonding?

A

electrostatic forces of attraction between rows of metal cations and a sea of delocalised electrons

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6
Q

what is the bond type in metallic bonding?

A

electrostatic attraction

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7
Q

electrostatic attraction / covalent bond between…

bond type and definition of ionic bonding?

A

electrostatic attraction between positive and negative ions

(between cations and anions)

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8
Q

what is the bond type in ionic bonding?

A

electrostatic attraction

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9
Q

electrostatic attraction / covalent bond between…

bond type and definition of simple MOLECULAR bonding?

A

covalent bond between ATOMS.
Weak intemolecular forces between molecules.

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10
Q

what is the bond type in simple MOLECULAR bonding?

A

covalent bond

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11
Q

electrostatic attraction / covalent bonds between…

bond type and definition of GIANT covalent bonding?

A

electrostatic attraction between the bonding pair of electrons and bonded nuclei

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12
Q

what is the bond type in GIANT covalent bonding?

A

electrostatic attraction

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13
Q

melting point & why: metallic bonding

A

HIGH - strong metallic bonds require a lot of energy to break

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14
Q

melting point & why: ionic bonding

A

HIGH - strong ionic bonds require a lot of energy to break

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15
Q

melting point & why: simple MOLECULAR bonding

A

LOW - weak intermolecular forces require little energy to break

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16
Q

melting point & why: GIANT covalent bonding

A

VERY HIGH - strong covalent bonds require a lot of energy to break

17
Q

conductivity: when and why - metallic

A

as a solid & liquid:
DELOCALISED e- can flow

18
Q

conductivity: when and why - ionic

A

when molten & in solution:
IONS can move

19
Q

conductivity: when and why - simple MOLECULAR

A

do not conduct:
no free moving charged particles

20
Q

conductivity: when and why - GIANT covalent

(any exceptions…?)

A

do not conduct:
no free moving charged particles
(GRAPHITE does - delocalised e- can flow)

Chemistry (11 decks)

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