Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

AQA GCSE Chemistry Revision > Atoms, elements and compounds > Flashcards

Atoms, elements and compounds Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route A flashcards GCSE Geography - AQA flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route B flashcards
1
Q

What is the chemical symbol for sodium?

A

Na

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where are non-metals found in the periodic table?

A

On the right

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a molecule?

A

Two or more atoms held together by chemical bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name 7 elements that exist as molecules (go round in pairs).

A
  • Iodine
  • Bromine
  • Chlorine
  • Fluorine
  • Oxygen
  • Nitrogen
  • Hydrogen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a compound?

A

A substance that contains two or more elements which are chemically combined

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the formula for magnesium oxide?

A

MgO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the formula for carbon dioxide?

A

CO2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the formula for water?

A

H2O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the formula for methane?

A

CH4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the formula for ammonia?

A

NH3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is an element?

A

A substance that contains only one type of atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is an ion?

A

A charged particle formed when an atom loses or gains electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What charge does an electron have?

A

A negative charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name the three subatomic particles that make up atoms.

A
  • Protons
  • Neutrons
  • Electrons
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the formula for a magnesium ion?

A

Mg2+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the formula for a chloride ion?

A

Cl-

17
Q

What are reactants?

A

Substances that react together in a chemical reaction

18
Q

What is a product?

A

A substance that is formed in a chemical reaction

19
Q

Sodium and chlorine react together to make sodium chloride.

What is the word equation for this reaction?

A

sodium + chlorine → sodium chloride

20
Q

What is the state symbol for a solid?

A

(s)

21
Q

What is the state symbol for a liquid?

A

(l)

22
Q

What is the state symbol for a gas?

A

(g)

23
Q

What is the state symbol for an aqueous solution?

A

(aq)

24
Q

What does aqueous solution mean?

A

Dissolved in water

25
Q

What is meant by the law of conservation of mass?

A

No atoms are created or destroyed during a chemical reaction, so the mass of the reactants is equal to the mass of the products

AQA GCSE Chemistry Revision (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions