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Chemistry AS level > 1.3 Bonding Part 1 > Flashcards

1.3 Bonding Part 1 Flashcards

1
Q

Define metallic bonding

A

A metallic bond is the attraction between delocalised outer shell electrons and positive metal ions in a lattice

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2
Q

What is the three dimensional arrangement in a metal called?

A

A lattice

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3
Q

What does delocalised mean?

A

The electrons are free to move throughout the structure

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4
Q

What does the term giant mean?

A

It has no fixed end points

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5
Q

What does the number of delocalised electrons depend on?

A

How many electrons are lost from each metal atom

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6
Q

Define an ionic bond

A

It is the electrostatic attraction between oppositely charged ions in a lattice

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7
Q

Between what does ionic bonding occur?

A

Metals and non metals

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8
Q

What happens to metal atoms in ionic bonding?

A

They lose electrons and become positively charged

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9
Q

What happens to non metals during ionic bonding?

A

They gain electrons and become negatively charged

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10
Q

What does boron not do?

A

Form ions

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11
Q

Which element doesn’t form ions?

A

Boron

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12
Q

Which elements don’t usually form ions?

A

Carbon and silicon

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13
Q

What is the formula for a nitrate(III)

A

NO2-

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14
Q

What is the formula for a nitrate(V)

A

NO3 -

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15
Q

What is the formula for cyanide?

A

CN-

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16
Q

What is the formula for a hydrogen carbonate?

A

HCO3 -

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17
Q

What is the formula for a hydrogen sulfate?

A

HSO4 -

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18
Q

What is the formula for a sulfate(IV)

A

SO4 2-

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19
Q

What is the formula for a sulfate(VI)

A

SO3 2-

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20
Q

What is the formula for a hydrogen phosphate?

A

HPO4 2-

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21
Q

What is the definition of a covalent bond?

A

A shared pair of electrons

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22
Q

When does a covalent bond occur?

A

A reaction between two non metals

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23
Q

When does a double bond form?

A

When two pairs of electrons are shared

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24
Q

When does a triple bond form?

A

When three pairs of electrons are shared

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25
What is non-octet molecule?
A molecule where the central atom doesn't have a noble gas electron arrangement
26
Define a coordinate/dative bond
A covalent bond in which both electrons of the shared pair come form the same atom
27
What is the shape of a molecule that has 5 bond pairs and 0 line pairs?
Trigonal bipyramidal
28
What is the bong angle for a molecule that has 5 bond pairs and 0 lone pairs?
90 and 120
29
Draw the shape of a molecule that has 5 bond pairs and 0 line pairs e.g) PCl5
* P in middle * 3 Cl at 90 to each other using straight lines * 2 Cl 120 apart (top with dashed and bottom with wedge)
30
What is the bond angle for a molecule that is trigonal bipyramidal?
90 and 120
31
What is the shape of a molecule that has 4 bond pairs and 0 lone pairs?
Tetrahedral
32
What is the bond angle for a molecule that has 4 bond pairs and 0 line pairs?
109.5
33
What is the bond angle for a tetrahedral molecule?
109.5
34
Draw a bond diagram for a molecule that has 4 bond pairs and 0 lone pairs e.g) CH4
* Carbon in the middle * Two hydrogen with straight lines * 2 Hydrogen, one with dashed line, other with wedge
35
What is the shape of a molecule that has 3 bond pairs and 0 lone pairs?
Trigonal planar
36
What is the bond angle for a molecule that has 3 bond pairs and 0 lone pairs?
120
37
What is the bond angle for a molecule that has the trigonal planar shape?
120
38
Draw a bond diagram for a molecule that has 2 bond pairs and 0 lone pairs e.g) BF3
* B in middle | * 3 fluorine with straight lines
39
What is the shape of a molecule that has 2 bond pairs and 0 lone pairs?
Linear
40
What is the bond angle for a molecule that has 2 bond pairs and 0 lone pairs?
180
41
What is the bond angle for a molecule that has a linear shape?
180
42
Draw a bond diagram for a molecule that has 2 bond pairs and 0 lone pairs e.g.) BeCl2
* Be in middle | * 2 Cl at either side with straight lines
43
What is the bond angle for a molecule that has 6 bond pairs and 0 lone pairs?
90
44
What is the shape of a molecule that has 6 bond pairs and 0 lone pairs?
Octahedral
45
What is the bond angle for a molecule that has a octahedral shape?
90
46
Draw a bond diagram for a molecule that has 6 bond pairs and 0 lone pairs e.g.) SF6
* S in middle * F coming off at top and bottom with straight lines * F coming off at either side that has dashed lines * F coming off at either side with wedges
47
What is different when drawing bond diagrams for double and triple bonds?
Nothing
48
What is the bond angle for a molecule that has 2 bond pairs and 1 lone pair?
120-2.5 = 117.5
49
What is the shape of a molecule that has 2 bond pairs and 1 lone pair?
V-Shaped
50
Draw a bond diagram for a molecule that has 2 bond pairs and 1 lone pair e.g)SnCl2
* Sn in middle * Lone pair at top with hat * Cl at either bottom side with straight lines
51
What is the bond angle for a molecule that has 3 bond pairs and 1 lone pair?
109.5 - 2.5 = 107
52
What is the shape for a molecule that has 3 bond pairs and 1 lone pairs?
Trigonal Pryamidal
53
Draw a bond diagram for a molecule that has 3 bond pairs and 1 lone pair e.g. NH3
* N in middle * Lone pair at top with hat * Stick H to left * Wedge H towards you * Dashed H right
54
What is the bond angle for a molecule that has 2 bond pairs and 2 lone pairs?
109.5 - 5 = 104.5
55
What is the shape of a molecule that has 2 bond pairs and 2 lone pairs?
V shaped
56
Draw a bond diagram for a molecule that has 2 bond pairs and 2 lone pairs e.g. Water
* O in middle * two lone pairs on top with hats * Two hydrogen on bottom with sticks
57
What is the bond angle for a molecule that has 3 bond pairs and 2 lone pairs?
120
58
What is the shape of a molecule that has 3 bond pairs and 2 lone pairs
Trigonal planar
59
What is the bond diagram for a molecule that has 3 bond pairs and 2 lone pairs?e.g. ICl3
* I in middle * Lone pair in top and bottom * Cl with stick to left * 2 Cl to the right one on top with dash and one on bottom with wedge
60
What is the bond angle for a molecule that has 4 bond pairs and 2 lone pairs
90
61
What is the shape of a molecule that has 4 bond pairs and 2 lone pairs?
Square planar
62
Draw a bond diagram that has 4 bond pairs and 2 lone pairs e.g. XeF4
* Xe in middle * Two lone pairs on top and bottom * F sticking up at either side with dash * F pointing down at either side with wedge

Chemistry AS level (8 decks)

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