Stucture And Bonding Chemistry Flashcards

1
Q

What happens in metallic bonding ?

A

Metals loose electrons to form positive ions

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2
Q

What’s metallic bonding between ?

A

Metals and metals

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3
Q

What’s a metallic bond ?

A

Delocalised electrons which are free to move that are shared

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4
Q

What’s ionic bonding between ?

A

Metal and non metal

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5
Q

What’s covalent bonding between ?

A

Non metal and non metal

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6
Q

What happens in ionic bonding ?

A

Metals lose electrons to form positive ions and the non metal gains electrons to make negative ions

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7
Q

How are the electrons transferred in ionic bonding ?

A

From metal to a non metal

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8
Q

What’s is an ionic bond ?

A

Strong electrostatic force between oppositely charged ions

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9
Q

How do you tell what group and ion is in ?

A

How many electrons are in its outer shell

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10
Q

What are some structure of covalent bonding ?

A

Diamond

Graphite

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11
Q

What does the dot and cross diagram display ?

A

Sharing of electrons

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12
Q

Why do metals have high boiling and melting points ?

A

Because they’re giant structures of atoms with strong bonds .

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13
Q

Why can metals be bent ?

A

Because they’re layers slide over each other

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14
Q

Why are alloys harder ?

A

Because they’re made up of two or more elements so the layers are distorted so cannot slide over each other

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15
Q

Why are metals hood conductors ?

A

Because theyre electrons are free to move

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16
Q

Why do ionic compounds have high melting point and boiling point ?

A

Because they have strong electrostatic force in all directions between they’re oppositely charged ions

17
Q

Why do they only conduct electricity in water ?

A

Because ions are free to move

18
Q

Why does diamond have a very high melting point and boiling point and is does not conduct electricity ?

A

Because every carbon is bonded to 4 other carbons by sting covalent bonds

19
Q

Why can graphite conduct electricity ?

A

Because it’s carbon atoms are each bonded to 3 other carbons