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Year 9 Chemistry > Atomic Structure And The Periodic Table > Flashcards

Atomic Structure And The Periodic Table Flashcards

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1
Q

What is an atom

A

The atom is a tiny particle that can’t even be seen with the naked eye

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2
Q

What does the periodic table display?

A

All the elements

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3
Q

Who argued that everything in the world was made up of particles so small they could not be cut in half?

A

Democritus

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4
Q

What did Democritus call these things

A

Atoms

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5
Q

What Greek word does atoms come from and what does it mean

A

Atomos and it means tiny

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6
Q

When did John dalton refine the idea

A

1800’s

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7
Q

What are the names of the atoms sub atomic particles

A

Protons, neutrons and electrons

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8
Q

Where is the cluster of neutrons and protons found

A

Nucleus

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9
Q

Where do the electrons live

A

In shells

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10
Q

How are atoms organised on the periodic table

A

Atomic number

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11
Q

What is a protons relative charge

A

+1

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12
Q

What is a protons relative mass

A

1

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13
Q

Where are protons found

A

Nucleus

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14
Q

What is a neutrons relative charge

A

0

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15
Q

What is a neutrons relative mass

A

1

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16
Q

Where are neutrons found

A

In the nucleus

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17
Q

What is an electrons relative charge

A

-1

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18
Q

What is an electrons relative mass

A

1/1840

19
Q

Where are electrons found

A

Shells orbiting the nucleus

20
Q

Fill in the blanks:
An….of an…….must contain…..numbers of……..and……..to ensure it is………

ie- that it has….overall……

A 
Atom
Element
Equal
Protons
Electrons
Neutral

No
Charge

21
Q

Number of protons=……..

A

Number of electrons

22
Q

Fill in the blanks:
The numbers of……… (Or………) determines which……..it is. The numbers of…….is…..to the……………..of the……….

A 
Protons
Electrons
Element
Protons
Equal
Atomic number
Element
23
Q

What number is the number of protons plus the number of the neutrons in the nucleus

A

The mass number

24
Q

Therefore the number of neutrons=…….

A

Mass number - number of protons

25
Q

How many protons neutrons and electrons are in boron, if the atomic number is 5 and the mass number is 11

A

No. Of protons=5
No. Of neutrons=6
No. Of electrons=5

26
Q

How many protons neutrons and electrons are in fluorine, if the atomic number is 9 and the mass number is 19

A

No. Of protons=9
No. Of neutrons=10
No. Of electrons=9

27
Q

How many protons neutrons and electrons are in silicon, if the atomic number is 14 and the mass number is 28

A

No. Of protons=14
No. Of neutrons=14
No. Of electrons=14

28
Q

What is the maximum number of electrons which can be contained in the first shell

A

2

29
Q

What is the maximum number of electrons which can be contained in the second shell

A

8

30
Q

What is the maximum number of electrons which can be contained in the third shell

A

8

31
Q

If sulfur has 16 electrons, what is its electronic structure

A

2,8,6

32
Q

If neon has an atomic number of 10 (num of electrons), what is its electronic structure

A

2,8

33
Q

If argon has an atomic number of 18 (num of electrons), what is its electronic structure

A

2,8,8

34
Q

Group 1 the alkali metals:

What is the observation for lithium and water

A

Fizzes across the surface, gives off a gas, the lithium disappears, heat given off

35
Q

Group 1 the alkali metals:

What is the observation for sodium and water

A

Fizzes across the surface, melts into a little ball, gives off a gas, heat given off

36
Q

Group 1 the alkali metals:

What is the observation for potassium and water

A

Fizzes across the surface, burns with a lilac flame, heat given off, gas produced, potassium gets smaller then disappears

37
Q

Group 1 the alkali metals:
Fill in the blanks:
These metals all have to be stored under….because they react with water.
They are all….enough to be cut with a knife
Reactivity increases as you go……the group
They all react with water to form an alkali (hence their name) and……… Eg- potassium+…………..–> potassium hydroxide +………..

A

Oil

Soft

Down

Hydrogen

Water

Hydrogen

38
Q

Group 2 alkaline earth metals:
fill in the blanks:
Like the……..metals, the alkaline earth metals react with……to produce………gas. These, reactions, however, are….intense than are those with the…….metals. Alkaline earth metals also react vigorously with……

A 
Alkali
Water
Hydrogen
Less
Alkali
Oxygen
39
Q

Group 0 the noble gases, fill in the blanks:
The elements in group 0 are called the……….. They have these properties in common;
They are……….
They are very………….gases (……)
They are……..

A 
Noble gases
Non metals
Unreactive 
Inert
Colourless
40
Q

Group 7 the halogens, fill in the blanks:
Fluorine is a…….gas but it is far too……..to handle at school. Chlorine is also a………….dangerous gas. Bromine is a…………hazardous…….but you may see a weak solution of it. Iodine is a…….solid but it is dissolved in……to for, a solution that is used to test for…….in biology. Astatine is………..and very……there are only a few…..of it in the whole of the earths crust at any one time

A 
Yellow
Dangerous
Yellow/green
Red/brown
Liquid
Purple
Water
Starch
Radioactive 
Rare
Grams
41
Q 
Fill in the observations for each of these halogens:
Fluorine
Chlorine
Bromine
Iodine
A

Fluorine-pale yellow gas
Chlorine-yellow/green gas
Bromine-red/brown liquid
Iodine-dark grey solid that turns to purple vapour when heated

42
Q 
Some chemicals can colour a Bunsen flame, what colour flames do these chemicals give
Sodium
Lithium
Potassium
Sodium bromide
A

Sodium-yellow flame
Lithium-red flame
Potassium-lilac flame
Sodium bromide-yellow

43
Q

What is one everyday use of sodium chloride

A

Table salt

44
Q

Particles that made up elements are known as…..

A

Atoms

Year 9 Chemistry (6 decks)

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