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Chemistry 11.9 > AQA Unit 1 Chemistry > Flashcards

AQA Unit 1 Chemistry Flashcards

1
Q

What is an element

A

A substance made of one type of atom

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2
Q

What is a compound

A

A substance made of two or more types of atom chemically bonded together

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3
Q

What is a mixture

A

Two or more elements and compounds not chemically bonded together

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4
Q

Is oxygen and element, compound or mixture ?

A

It’s an element !

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5
Q

Is carbon dioxide an element, compound or a mixture ?

A

It’s a compound !

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6
Q

Is air and element, compound or a mixture

A

It’s a mixture !

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7
Q

How many carbon atoms are in CO2

A

There is one atom !

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8
Q

How many chlorine atoms are in AL3CL6

A

There is 6 atoms !

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9
Q

How many different elements are in C6H12O6

A

There is 3 elements ! (Carbon, hydrogen and oxygen)

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10
Q

What is the centre of an atom called ?

A

It is the nucleus

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11
Q

What ae the three subatomic particles in an atom?

A

Proton, neutron and electrons

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12
Q

Where are protons and neutrons located in the atom ?

A

In the nucleus

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13
Q

Where are electrons located ?

A

In the shells.

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14
Q

What is the charge of a neutron ?

A

Zero

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15
Q

What is the mass of a proton, electron and neutron

HINT- Pen101

A

1,0,1

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16
Q

How many electrons can you put in the first three shells ?

A

2,8,8

17
Q

Who came up with the plumb pudding model ?

A

JJ Thompson

18
Q

Who said that the atom had a dense nucleus with electrons in orbit ?

A

Rutherford

19
Q

Who said that the electrons were in shells ?

A

Niels Bohr

20
Q

Who discovered the neutron ?

A

James Chadwick

21
Q

What are the elements in group 1 called in the periodic table

A

Alkali metals

22
Q

What are the elements on group 7 called

A

Halogens

23
Q

What are the elements in group 0 called ?

A

Noble gases

24
Q

Why are the noble gases (group 0) unreactive ?

A

They all have a full outer shell

25
Q

What happens to the reactivity down group 1 ?

A

They get more reactive down the group

Chemistry 11.9 (2 decks)

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