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Chemistry Paper 1 > Periodic table > Flashcards

Periodic table Flashcards

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1
Q

what are group 1 metals known as?

A

Alkali metals

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2
Q

what physical properties do alkali metals have?

A

low melting and boiling points

very soft

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3
Q

what do alkali metals form?

A

Ionic compounds

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4
Q

why are alkali metals more reactive the further down you go?

A

the outer electron is more easily lost as it is further from the nucleus

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5
Q

what does it mean if an electron is further away from a nucleus?

A

less strongly attracted to nucleus and less energy needed to remove it

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6
Q

what happens when alkali metals are placed in water?

A

React vigorously

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7
Q

what does a reaction with water and alkali metals produce?

A

hydrogen gas and hydroxide of a metal

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8
Q

what are group 7 elements called?

A

Halogens

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9
Q

what bonds do halogens have?

A

covalent bonds

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10
Q

what kind of molecules are halogens?

A

diatomic molecules

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11
Q

what happens when you go down group 7?

A

the melting and boiling points increase and colour gets darker

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12
Q

how do you test for chlorine?

A

hold a damp blue litmus paper over it

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13
Q

what colour will chlorine change the paper too?

A

white or red at first

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14
Q

what happens when you go down group 7?

A

the halogens become less reactive as harder to attract electron

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15
Q

how are metal halides formed?

A

when a halogen reacts vigorously with a metal

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16
Q

how are hydrogen halides formed?

A

halogens react with hydrogen

17
Q

what makes hydrogen halides different to metal halides?

A

soluble in water

18
Q

what type of reaction is halogen displacement reactions?

A

Redox

19
Q

do halogens gain or lose electrons?

A

gain (reduction)

20
Q

do halides gain or lose electrons?

A

lose (oxidation)

21
Q

what are group 0 elements?

A

noble gases

22
Q

what colour or noble gases?

A

colourless

23
Q

what does monatomic mean?

A

gases that are made up of one single atom

24
Q

what does inert mean?

A

they don’t react with much

25
Q

why are noble gases inert?

A

because they have full outer shell so they don’t give up or lose electrons easily

26
Q

what can argon make?

A

filament lamps

27
Q

what is helium used in?

A

airships and balloons

28
Q

why do balloons float?

A

because helium is less dense than air

29
Q

what happens when you go down group 0?

A

melting, boiling point and density increase

30
Q

why do elements in the same group react in the same way?

A

because they have the same number of electrons in outer shell

31
Q

what is neon made up of?

A

argon and helium

Chemistry Paper 1 (7 decks)

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