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Chemistry > Unit 1- Bonding > Flashcards

Unit 1- Bonding Flashcards

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0
Q

Can atoms achieve a stable electron arrangement by forming bonds?

A

Yes

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1
Q

What are atoms held together by?

A

Bonds

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2
Q

What happens to an atoms electrons in a covalent bond?

A

It shares pairs of electrons in order to achieve a stable electron arrangement

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3
Q

What is a covalent bond a result of?

A

2 positive nuclei being held together by their common attraction for the shared pair of electrons

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4
Q

Are covalent bonds strong or weak?

A

Strong

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5
Q

What do covalent bonds make?

A

Bigger groups of atoms called molecules

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6
Q

What charge does a molecule have?

A

Neutral

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7
Q

If atoms are in a covalent bond do you conduct electricity?

A

No

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8
Q

How are polar covalent bonds formed?

A

When the attraction of the atoms for the bonded electrons are different

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9
Q

How are the electrons shared in a polar covalent bond?

A

Unequally

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10
Q

Are covalent bonds in water polar?

A

Yes, they are highly polar

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11
Q

When are ionic compounds usually formed?

A

When metals and non-metals combine

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12
Q

How are positive ions formed?

A

By metal atoms losing electrons

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13
Q

How are negative ions formed?

A

Non-metal atoms gaining electrons

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14
Q

How do atoms achieve a stable electron arrangement?

A

Losing or gaining electrons

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15
Q

Why is ionic bonding?

A

An electrostatic force of attraction between oppositely charged ions

16
Q

What structure is ionicly bonded compounds in?

A

A ionic lattice

17
Q

What does a metallic structure consist of?

A

A giant lattice of positively charged ions and delocalised electrons

18
Q

How is metallic bonding caused?

A

The electrostatic force of attraction between the positive ions and the negative delocalised electrons

19
Q

Does a metallic bond have a strong or weak bond

A

Strong

20
Q

Does metallic bonding have a low or high boiling and melting points?

A

High

21
Q

Are metallic bonds conductors?

A

Yes

22
Q

Why can metals conduct electricity?

A

They contain free electrons and the electrons are free to move

Chemistry (44 decks)

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