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GCSE AQA Chemistry Important > C1 Atoms, periodic table and chemical reactions > Flashcards

C1 Atoms, periodic table and chemical reactions Flashcards

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1
Q

What is an element?

A

A substance that contains only one type of atom

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2
Q

What substances are found in the periodic table?

A

Elements

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3
Q

What is the symbol for oxygen?

A

O

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4
Q

What is the symbol for sodium?

A

Na

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5
Q

Where are substances found with similar properties?

A

In the same group

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6
Q

What subatomic particles are in the nucleus in an atom?

A

Protons and neutrons

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7
Q

What subatomic particle goes around the nucleus in an atom?

A

Electrons

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8
Q

What is the charge on a proton?

A

+1

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9
Q

What is the charge on a neutron?

A

0

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10
Q

What is the charge on an electron?

A

-1

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11
Q

Do atoms have a charge, why?

A

No because the number of positive protons equal the number if negative electrons

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12
Q

A carbon atom has 6 protons how many electrons will it have?

A

6

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13
Q

What order are the elements in the modern periodic table?

A

Atomic number

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14
Q

How do you calculate the number of protons in an element?

A

Equal to the atomic number

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15
Q

Do you always get the same number of protons in an element?

A

Yes

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16
Q

How do you calculate the number of neutrons in Lithium?

A

Mass number- atomic number = 7-3=4

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17
Q

How many electrons can occupy the first (inner) shell?

A

2

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18
Q

How many electrons can occupy the second shell?

A

8

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19
Q

How many electrons can occupy the third shell?

A

8

20
Q

Draw the electron structure of a Lithium atom.

A
21
Q

How many outer electrons have the elements in group 1?

A

1

22
Q

How many outer electrons have the elements in group 6?

A

6

23
Q

What is the electron configuration for Lithium?

A

2,1

24
Q

What is a compound?

A

Substance containing 2 or more elements chemically bonded together

25
Q

Which electrons are involved in chemical bonding?

A

Outer electrons

26
Q

What happens to electrons when they are involved in bonding?

A

Transferred or shared

27
Q

What is the relative mass of a proton?

A

1

28
Q

What is the relative mass of a neutron?

A

1

29
Q

What is the relative mass of an electron?

A

1/ 1840 or very small

30
Q

What is the mass number?

A

Protons + neutrons

31
Q

What are the elements in group 1 called?

A

Alkali metals

32
Q

What are the elements in group 7 called?

A

Halogens

33
Q

What are the elements in group 0 called?

A

Noble gases

34
Q

Describe the reaction of lithium with oxygen.

A

Lithium goes dull and lithium oxide is produced

35
Q

Describe the reaction of sodium with water.

A

Sodium floats on the water and moves around, it melts into a ball, it fizzes giving off hydrogen gas and it turns universal indicator blue/purple.

36
Q

Neon is in which group in the periodic table?

A

Group 0

37
Q

Why is Neon unreactive?

A

Has a full outer shell of electrons

38
Q

When becoming compounds what do metals with non-metals become?

A

Ionic compounds

39
Q

When becoming compounds what do non-metals become?

A

Covalent compounds

40
Q

What happens to a metal when it becomes a charged particle?

A

It loses electrons

41
Q

What happens to a non-metal when it becomes a charged particle?

A

It gains electrons

42
Q

What charge will group 1 elements form?

A

+1

43
Q

What charge will the halogens form?

A

-1

44
Q

What type of bond is found in molecules?

A

Covalent

45
Q

In a chemical reaction are the mass of reactants always the same as the mass of products?

A

Yes

46
Q

Write a word equation and balance the following equation?

Mg + O2 → MgO

A

Magnesium + oxygen → Magnesium oxide

2Mg + O2 → 2MgO

47
Q

Write a word equation and balance the following equation?

Na + H2O → NaOH + H2

A

Sodium + water → Sodium hydroxide and hydrogen

2Na + 2H2O → 2NaOH + H2

GCSE AQA Chemistry Important (18 decks)

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