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Chemistry - Mum & Tom > Atomic Structure & The Periodic Table > Flashcards

Atomic Structure & The Periodic Table Flashcards

(79 cards)

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1
Q

What element is represented by W ?

A

Tungsten

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2
Q

What element is represented by Na?

A

Sodium

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3
Q

What element is represented by Si?

A

Silicon

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4
Q

What element is represented by Co?

A

Colbalt

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5
Q

What element is represented by Fe?

A

Iron

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6
Q

What group is Oxygen in ?

A

Group 7

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7
Q

What group is Argon in ?

A

Group 8

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8
Q

What group is Potassium in ?

A

Group 1

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9
Q

What group is sulphur in ?

A

Group 6

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10
Q

What group is chlorine in ?

A

Group 7

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11
Q

What period is phosphorus in ?

A

Period 3

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12
Q

What period is nitrogen in ?

A

Period 2

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13
Q

What period is gallium in ?

A

Period 4

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14
Q

What period is calcium in ?

A

Period 4

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15
Q

What period is gallium in ?

A
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16
Q

What period is carbon in ?

A

Period 2

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17
Q

What is a compound ?

A

A compound is two or more elements that are chemically bonded

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18
Q

What is a mixture?

A

A mixture is a two or more elements that are individually distinct

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19
Q

Give 3 ways of separating out mixtures ?

A

Filtration , distillation evaporation

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20
Q

What did Chadwick discover ?

A

Chadwick proved the existence of neutrons

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21
Q

What experiment did Rutherford do ?

A

He did the gold foil experiment which was about alpha beta particles etc

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22
Q

What type of foil did Rutherford use ?

A

Gold foil

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23
Q

What did Rutherford fire at the Atom ?

A

Alpha particles

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24
Q

What model of the atom was Rutherford testing

A

The nuclear model

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25
What did Rutherford discover ?
He discovered alpha and beta rays and proposed the laws of radioactive decay
26
What was the new model of the atom called ?
Nuclear atom
27
Where are electrons ?
On the outer shell outside the nucleus
28
Where are protons ?
Protons are located within the nucleus
29
Where are neutrons ?
Within the nucleus
30
What charge do protons have ?
Positive
31
What charge do neutrons have ?
Neutral
32
What charge do electrons have ?
Negative
33
What mass do protons have ?
1
34
What mass do electrons have ?
Less than 1
35
What mass do neutrons have ?
1
36
What does the atomic number tell us ?
The number of protons in the nucleus
37
What does the mass number tell us ?
The total number of protons and neutrons an atom contains
38
How do you find the number of protons in an atom?
Equal to the atomic number of an element
39
How do you find the number of electrons in an atom ?
Equal to the number of protons
40
How do you find the number of neutrons in an atom ?
Subtract the atomic number by the mass number of the atom
41
How do you find the number of protons in an ion ?
The number of protons is equal to the atomic number of the element
42
How do you find the number of electrons in an ion ?
For a positively charged ion it is the atomic number minus the charge For a negatively charged ion it is the atomic number added to the charge
43
How do you find the number of neutrons in an ion ?
By subtracting the atomic number by the atomic mass
44
How many electrons fit on the first shell ?
2 on the first shell
45
How many electrons fit on the second shell ?
8
46
How many electrons fit on the third shell ?
18
47
What element has the electronic structure 2,8,1 ?
Sodium
48
What element has the electronic structure 2,3 ?
Fluorine
49
What element has the electronic structure 2,8 5 ?
Phosphorus
50
What element has the electronic structure 2 ?
Helium
51
What element has the electronic structure 2, 8, 8, 1 ?
Potassium
52
What type of ions do metals form positive or negative?
Positive
53
What type of ions do non-metals form positive or negative?
Negative
54
What bonding occurs between two metals ?
Metallic bonds
55
What bonding occurs between and metal and a non metal ?
Ionic bonds
56
What happens to the electrons in covalent bonding?
They are retracted by the two atomic nuclei
57
What happens to the electrons in ionic bonding ?
The electrons get donated to another atom
58
How did Mendeleev organise his periodic table ?
Increasing atomic weight
59
Why did Mendeleev leave gaps in his periodic table ?
To leave space for elements not known at the time
60
On which side left/right of the periodic table are metals found ?
Left side
61
On which side of the periodic table are non metals found ?
Right
62
What is another name for group 1 ?
Alkaline metals
63
How reactive are group 1 elements?
Very reactive
64
How does reactivity change as you go down group 1 ?
Reactivity increases because the atoms get larger
65
How does sodium react with water ?
It reacts vigorously with water to produce sodium hydroxide
66
How does sodium react oxygen?
It reacts to form two compounds sodium oxide and sodium peroxide
67
How does sodium react with chlorine ?
It forms sodium chloride sodium loses an electron and chlorine gains that electron
68
What is another name for group 0/8 !
Noble gases
69
How reactive are group 0 elements?
Very unreactive
70
How does boiling point change as you go down group 0 ?
Increases going down the group
71
What is another name for group 7?
Halogens
72
How reactive are group 7 elements?
Fairly reactive they get Less reactive as you go down the group
73
How does boiling point change as you go down group 7 ?
Decrease
74
How does reactivity change as you go down group 7 ?
It gets less reactive
75
What are the properties of transition metals ?
They are good conductors of heat They have high densities and high melting points
76
Give a use for transition metals ?
Titanium used for Aircraft and hip replacement surgeries Iron is used for construction
77
What colour does iron (II) go ?
Green
78
What colour does iron (III) go ?
Yellow
79
What colour does copper (II) go ?
Bright green

Chemistry - Mum & Tom (2 decks)

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