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Yr 8 Science > Periodic table > Flashcards

Periodic table Flashcards

1
Q

What is an element?

A

It is a substance that is made of 1 atom and cannot be broken down

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2
Q

The vertical columns in the periodic table are…

A

Groups

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3
Q

The horizontal rows in the periodic table are known as…

A

Periods

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4
Q

What are alkali metals?

A

They are the group 1 metals and have 1 electron in their outer shell

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5
Q

What are alkaline earth metals?

A

These are the elements in group 2 and have 2 electrons in their outer shell.

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6
Q

What are halogens?

A

They are the elements in group 7 and have 7 electrons in their outer shell

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7
Q

What are noble gases?

A

They are the elements in group 8 (or 0)which has reached stability

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8
Q

What are the transition metals?

A

These are the metals in the middle of the table

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9
Q

What is the periodic table?

A

It is the table which shows all of the elements invented

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10
Q

Metal + acid=

A

Metal Salt + hydrogen

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11
Q

Metal + oxygen =

A

Metal oxide

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12
Q

Metal + water =

A

Metal hydroxide + hydrogen gas

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13
Q

What is displacement?

A

When a more reactive metal replaces the less reactive metal

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14
Q

Example of displacement

A

Zinc sulphate + aluminium = aluminium sulphate + zinc

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15
Q

What is an ore?

A

A naturally occurring solid material from which a metal can be extracted

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16
Q

What is the reactivity series?

A

It shows a list of of the metals in order of their reactivity so more reactive at the top and less at the bottom

17
Q

What is thermite reaction?

A

When ignited by heat, thermite undergoes an exothermic reduction-oxidation.

18
Q

What is the least reactive metal?

19
Q

What is the most reactive metal?

20
Q

Potassium + water =

A

Potassium hydroxide + hydrogen gas

21
Q

Magnesium + water =

A

No reaction

22
Q

If the acid is nitric acid the salt formed is a …

23
Q

If the acid is sulphuric acid the salt formed is a…

24
Q

Magnesium + hydrochloric acid =

A

Magnesium chloride + hydrogen

25
Q

Magnesium + oxygen =

A

Magnesium oxide

26
Q

Order the following elements in terms of increasing reactivity
Potassium

A

Lithium
Sodium
Potassium
Rubidium

27
Q

What is the chemical symbol for potassium?

28
Q

Na is the chemical symbol for which element?

29
Q

Fr is the chemical symbol for which element?

30
Q

The chemical symbol for Iron is…

31
Q

Ar is the chemical symbol for which element?

Yr 8 Science (7 decks)

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