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Science > Periodic table > Flashcards

Periodic table Flashcards

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1
Q

List the first 20 elements in order

A

Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminium, silicon, phosphorus, sulphur, chlorine, argon, potassium , calcium

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2
Q

What is the symbol for iron

A

Fe

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3
Q

What is the symbol for sodium

A

Na

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4
Q

What is the symbol for potassium

A

K

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5
Q

What is the definition of an element

A

A simple substance made up of one type of any atom

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6
Q

What is the definition of a compound

A

A substance that can be split up into simpler substances, it contains an atom or more elements

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7
Q

What is the definition of a mixture

A

2 or more substances jumbled up but not joined together. The substances are often separated from each other

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8
Q

give an example of a physical change

A

Solid————> liquid = physical

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9
Q

Define a chemical change

A

An example of a chemical change is when sodium reacts with water, it fizzes violently and the water changes purple

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10
Q

What does argon look/smell like and what is it used for?

A

Argon is a colourless ,odourless gas that is used in light bulbs and double glazed windows

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11
Q

What does chlorine look like and what is it used for

A

Chlorine is a yellow and green gas it kills bacteria and is used in swimming pools.

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12
Q

How do you work out the mean?

A

Add up results then divide them by the amount of results there were.

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13
Q

What is the definition of an outlier

A

It is another term for an anomalous result. It is a result that does follow the pattern of other results

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14
Q

What is periodicity?

A

Periodicity is patterns across the periodic table.

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15
Q

Is metal oxide an alkali or acid

A

Alkali

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16
Q

Is non metal oxide an alkali or an acid

A

Acid

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17
Q

Give an example of three alkali metals

A

Lithium, sodium and potassium

18
Q

List 5 physical properties of alkali metals

A 
They are solids at room temperature 
They have low melting points 
They are a soft metal 
They have a low density 
They float in water
19
Q

List three chemical properties of alkali metals

A

Very reactive
Reacts with water
They have to be stored in oil

20
Q

How does lithium react with water

A

There are small bubbles

21
Q

How does sodium react with water

A

It fizzes and moves around

22
Q

How does potassium react with water

A

There are flames
It moves around
Very reactive

23
Q

What group are the alkali metals and what is the pattern

A

They are group 1 and they get more reactive as they go down the table

24
Q

List three examples of halogen

A

Chlorine
Bromine
Fluorine

25
Q

What is fluorine?

A

A pale yellow gas

26
Q

How does fluorine react with magnesium?

A

It burns very brightly and becomes MgF2

27
Q

At what temperature does chlorine melt?

A

-10 degrees

28
Q

What happens when chlorine reacts with magnesium?

A

It burns brightly

29
Q

What is bromine

A

A green gas

30
Q

At what temperature does bromine melt?

A

At -7 degrees

31
Q

What is 1 chemical property of halogens

A

They are very reactive elements

32
Q

What is the periodicity (pattern) of halogens

A

They get less reactive as you go down the group

33
Q

List two physical properties of halogens

A

They have a low melting and a low boiling point

34
Q

True or false:

Non metal oxides are less acidic than metal oxides

A

False, metal oxides are less acidic and non metal oxides are more acidic

35
Q

True or false:

As we go across the periodic table from left to right the elements get more acidic

A

True

36
Q

In a equation, when a non metal changes to “ide” what does this show

A

It shows that you now have a compound

37
Q

Iron + oxygen ———–> ?

A

Iron oxide

38
Q

Aluminium+ bromine———–>?

A

Aluminium bromide

39
Q

Sodium+ chlorine————->

A

Sodium chloride

40
Q

Sodium + water ———->

A

Sodium hydroxide + hydrogen

41
Q

Calcium + water———>

A

Calcium hydroxide + hydrogen

42
Q

Zinc + sulphuric acid———–>

A

Zinc sulfate + hydrogen

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