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Science > Elements, Atoms, Compounds > Flashcards

Elements, Atoms, Compounds Flashcards

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1
Q

Right or left does the non metals occur?

A

The right hand side.

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2
Q

Is the metals on the left hand side or the right hand side?

A

Metals.

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3
Q

How much space does the non metals take up in the periodic table?

A

1/5th.

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4
Q

How much space does the metals take up in the periodic table?

A

4/5th.

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5
Q

What do all the bottom numbers of element have?

A

Atomic numbers.

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6
Q

What is the group 1?

A

Alkali metals

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7
Q

What is group 7?

A

Halogen. ( salt maker )

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8
Q

Name examples of alkali metals!

A

Lithium, sodium, potassium, rubidium, caeslum,francium

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9
Q

Name the halogen group 7

A

Flourine, chlorine, bromine, iodine, astatins

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10
Q

What is a group 0/8?

A

Noble gas.

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11
Q

Name the noble gases.

A

Helium , neon, argon, krypton, xeonon, radon.

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12
Q

What is a molecule

A

A molecule is two or more atoms chemically joined

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13
Q

Can they come from the same element or different elements?

A

Both.

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14
Q

What is a compound?

A

Two or more atoms from different elements chemically joined

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15
Q

Can you have a compound of two atoms that are the same?

A

No you can’t, as they are chemically joined.

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16
Q

Work out this compound.

Iron+sulphur

A

Iron sulphide

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17
Q

What colour is iron?

A

Grey

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18
Q

What colour is sulphur?

A

Yellow

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19
Q

What state is iron?

A

A solid.

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20
Q

What state is sulphur?

A

Solid

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21
Q

Is iron magnetic?

A

Yes

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22
Q

Is sulphur magnetic?

A

No

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23
Q

Is iron dense?

A

It is denser than water.

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24
Q

Is sulphur dense?

A

Less dense than water.

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25
Q

How many properties does a compound have?

A

It has very different properties to the element

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26
Q

What is a compound made from

A

Conducts elect

27
Q

What does an atoms of a gas look like?

A

🌕

🌕 🌕 🌕

28
Q

What does atoms of an element look like?

A

Like a pyramid.

            🌕🌕🌕🌕🌕
                 🌕🌕🌕
                   🌕🌕
                      🌕
29
Q

What does a molecule of 2 identical atoms look like?

A

🌕🌕 🌕🌕
🌕🌕

🌕🌕                         🌕🌕

Like a square and two in the middle.

30
Q

What does a compound that’s also a molecule look like?

A

🌕 🌕
🌕🌕 🌕🌕

🌕
🌕🌕 🌕
🌕🌕

31
Q

What do all elements have?

A

There own symbol.

32
Q

Do some questions on elements in compounds.

Hydrogen and chlorine =

A

Hydrogen chloride

33
Q

Lithium + fluorine=

A

Lithium fluoride

34
Q

Nitrogen + oxygen

A

Nitrogen dioxide

35
Q

Carbon+oxygen =

A

Carbon dioxide

36
Q

Carbon + hydrogen

A

Methane

37
Q

CH4

A

1 Carbon+ 4 hydrogen

38
Q

Al 0

2 3

A

2 aluminium + 3 oxygen

39
Q

Word equations.

Potassium chloride + fluorine =

A

Potassium fluoride+ chloride

40
Q

Potassium iodide + chloride=

A

Potassium chloride + iodine

41
Q 
Chemical equations.
KCL+ F2         --------      KF+CL2
K=2                ---------      K= X2 
Cl=2               ---------      Cl=2
F=2                  --------       F=X2

BALANCE IT OUT

A 
Chemical equations.
KCL+ F2         --------      KF+CL2
K=2                ---------      K= 2
Cl=2               ---------      Cl=2
F=2                  --------       F=2
42
Q

What does the staircase do?

A

It divides the non metals from the metals.

43
Q

Name two liquid elements

A

Hg- Mercury - is a metal

Br- bromine - non metal

44
Q

What is iron sulphide made up of

A

Iron and sulphur

45
Q

HI

A

Hydrgen+iodine

46
Q

C02

A

Carbon dioxide

47
Q

Ch4

A

Carbon and hydrogen= methane

48
Q

Cacl2

A

Calcium chloride

49
Q

What does dio mean

A

Two

50
Q

Are halogens safe to work with?

A

No

51
Q

Going down the group how does the melting point change?

A

It increases

52
Q

Going down the group how does the boiling point change?

A

It increases

53
Q

Going down the group how Does the density change?

A

Increases

54
Q

What state is fluorine

A

Gas

55
Q

What colour is fluorine

A

Light green

56
Q

What state is chlorine

A

Gas

57
Q

What colour is chlorine?

A

Green/ yellow

58
Q

What state is bromine?

A

Liquid

59
Q

What colour is bromine?

A

Red/ brown

60
Q

What state is iodine?

A

Solid

61
Q

What colour is iodine?

A

Purple

62
Q

What state is Astastine?

A

Solid

63
Q

What colour is Astastine?

A

Black

Science (22 decks)

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