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Copy - GCSE Chemistry 11L1 > 3.1 Periodic Table > Flashcards

3.1 Periodic Table Flashcards

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1
Q

Who made the law of octaves?

A

Newlands.

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2
Q

Who created a spiral to show the elements in order of atomic weight?

A

Chancourtois.

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3
Q

Who’s periodic table is most similar to the table we use now?

A

Mendeleev’s.

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4
Q

What are the group of elements in the middle of the periodic table called?

A

Transition metals.

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5
Q

In group 1 (the alkali metals) what is the most reactive element?

A

Francium.

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6
Q

What is the name of the elements in group 7 called?

A

The halogens.

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7
Q

In group 7, are the elements more reactive at the top of bottom of the column?

A

At the top.

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8
Q

As you go down group 1, what happens to the melting points of the metals?

A

It decreases.

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9
Q

Are alkali or transition metals used in a catalyst?

A

Transition metals.

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10
Q

Why was Mendeleev’s periodic table not accepted at first?

A

He had not discovered all the elements in the table and he swapped some elements around that other scientists did not agree with.

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11
Q

Which produce more colourful salts, transition or alkali metals?

A

Transition metals make colourful salts

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12
Q

What is a halogen?

A

An halogen is an element from group 7

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13
Q

What is an halide?

A

A compound including a halogen

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14
Q

Do alkali metals have a high or low density?

A

They have a low density compared to transition metals.

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15
Q

Do group 1 metals have high or low boiling/melting points?

A

They have low boiling/melting points

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16
Q

How many electrons do alkali metals have on their highest energy level?

A

They have one electron on their outer shell

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17
Q

As you descend group 1 they react more quickly with air, true or false?

A

True, as you descend group 1 they react more quickly with air

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18
Q

Why are the Metals in group 1 Called Alkali metals?

A

Because they all form hydroxides which hissolve in water to give strongly alkaline solutions

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19
Q

Why Are alkali metals Stored in Oil?

A

To prevent Them From reacting with the oxygen in the Air

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20
Q

Why wasn’t John newlands theory widely accepted?

A

Because he was forced to put elements in the same groups as other elements even if their properties weren’t similar. For example he put iron in the same group as oxygen

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21
Q

How did mendeleev order his elements in his table?

A

By atomic mass

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22
Q

What made mendeleevs table so clever?

A

He knew where gaps were in the table and so predicted what properties the elements would have once they were discovered.

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23
Q

Why did mendeleev’s table gain credit after his table was published?

A

Because the properties of new found elements fit in with his predictions.

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24
Q

How did mendeleev overcome the problems newlands had faced?

A

He swapped elements around In some circumstances so that the properties were similar

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25
Q

What happens as you go down the list of alkali metals?

A

They become more reactive

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26
Q

Why are the noble gases unreactive?

A

Because they have a full outer shell

27
Q

How many groups are there in the periodic table?

A

18

28
Q

What happens as you go down the list of halogens?

A

They become less reactive

29
Q

What was John newlands theory called ?

A

The law of octaves

30
Q

A more reactive halogen will do what to a less reactive halogen in a halide solution?

A

It will displace it

31
Q

Why do the element get less reactive as we move down group 7?

A

Because there are more electrons rings, which are therefore further away from the nucleus. As a result there is a weaker attraction towards the nucleus and therefore harder to gain an electron- less reactive.

32
Q

What type of reaction includes a non-metal and a metal?

A

Ionic bonding

33
Q

Chlorine, hydrogen, oxygen and nitrogen are all what?

A

Diatomic elements

34
Q

What did Meyer not include in his version of the periodic table?

A

Transition metals

35
Q

In what way was Mendeleev limited in order to produce the periodic table?

A

Only 60 element had been discovered

36
Q

Who called there idea “telluric spiral”?

A

Chancourtois

37
Q

Why where other scientists critical of Newlands’ Law of Octaves?

A

Non-metals and metals were mixed together. He put more than one elements in each box.

38
Q

As you work down the group 1 metals, how do their boiling points change?

A

They decrease.

39
Q

Do transision metals form coloured or non coloured compounds?

A

Coloured

40
Q

Do transision metals have high or low melting points?

A

High

41
Q

Are transition metals useful catalysts?

A

Yes

42
Q

What happens to the reactivity of the halogens as you go down the group?

A

They become less reactive

43
Q

What happens to the reactivity of the atom as you go down group 1?

A

They become more reactive

44
Q

Which group is sodium in?

A

Group 1

45
Q

Which group are atoms with one electron on the outer shell in?

A

Group 1

46
Q

Which scientist came up with a table that used the law of triads?

A

Johann Döbereiner.

47
Q

What is the name of each vertical column in the periodic table we use today (a variation of Mendeleev’s)?

A

A group.

48
Q

How are elements arranged on the periodic table we use today (a variation of Mendeleev’s)?

A

By increasing atomic number.

49
Q

What is the name of each horizontal row in the periodic table we use today (a variation of Mendeleev’s)?

A

A period.

50
Q

What do elements in the same group share?

A

Similar properties.

51
Q

What is the name of group 1?

A

The Alkali metals.

52
Q

What is the name of group 7?

A

The Halogens.

53
Q

What is the name of group 8?

A

The Noble gases.

54
Q

Which metals form ionic compounds on reaction with non-metals

A

Alkali and transition

55
Q

Which metals have a low density?

A

Alkali metals

56
Q

Which metals have high melting points?

A

Transition metals

57
Q

Which metals are used as catalysts?

A

Transition metals

58
Q

Which metals compounds dissolve in water to give colourless solutions?

A

Alkali metals

59
Q

Do alkali metals have low or high melting points?

A

Low melting points

60
Q

Do all atoms become more reactive with more electron shells?

A

No, the Halogen gases become less reactive as they descend the table.

61
Q

Which six elements commonly travel in pairs?

A

Nitrogen, Oxygen, Fluorine, Chlorine, Bromine, Iodine

62
Q

Which element does not fit in the periodic table?

A

Hydrogen

63
Q

What changes as we go across the periodic table?

A

The amount of electrons on the outer shell.

64
Q

What changes as we go down the periodic table?

A

The number of electron shells.

Copy - GCSE Chemistry 11L1 (23 decks)

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