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Chemistry > The Periodic Table > Flashcards

The Periodic Table Flashcards

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1
Q

What are group 1 elements called?

A

Alkali metals

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2
Q

What are group 7 elements called?

A

The Halogens

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3
Q

What are group 0 elements called?

A

Noble gases

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4
Q

Group 1 are more reactive down/up the group

A

Down

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5
Q

Group 7 are more reactive down/up the group

A

Up

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6
Q

Why are group 0 not reactive?

A

Already have full outershells

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7
Q

Are metals on the Left or right side of the periodic table?

A

Left

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8
Q

Why are group 7 more reactive up the group?
What do they want?
It’s easier to do this because…?

A

Group 7 want to gain and electron (reduction)

Up the group shells and nucleus are closer together = stronger force of attraction = so easier to pull electron in

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9
Q

Why are group 1 more reactive down the group?
What do they want?
How is it easier to do this…?

A

Group 1 want to lose an electron (oxidisation)

Down the group the more shells so the attraction gets weaker

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10
Q

What do elements in the same group have in common?

2

A

Similar chemical properties

Same number of electrons in outer shell

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11
Q

What do elements in the same period have in common?

A

Same number of shells

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12
Q

How do you classify a element as metal or non-metal?

A

Do they conduct electricity as a solid?

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13
Q

What happens when lithium (group 1) reacts with water?

A

Lump of lithium moves slowly around the surface
Fizzing until disappears
Water becomes alkali -> universal indicator = purple

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14
Q

What happens when sodium (group 1) is reacted with water?

A

Sodium fizzes rapidly
Quickly moves around the surface
May ignite
Water becomes alkali -> universal indicator = purple

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15
Q

What happens when potassium (group 1) is reacted with water?

A

Reacts vigorously
Burns with a lilac flame
Sometimes explodes
Water -> alkali = universal indicator -> purple

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16
Q

What is the colour and physical state of chlorine at rm temp?

A

Green

Gas

17
Q

What is the colour and physical state of bromine at rm temp?

A

Red/brown

Liquid

18
Q

What is the colour and physical state of iodine at rm temp?

A

Dark grey

Solid

19
Q

Up/Down group 7 the colour of the elements gets darker

A

Down (atomic number increases - darker colour)

20
Q

The boiling point increases/decreases down the group?

A

Increases (opposite to reactivity)

21
Q

What is the formula of hydrogen chloride?

A

HCl

22
Q

What physical state is hydrogen chloride at rm temp?

A

Gas

23
Q

What happens to hydrogen chloride when its reacted with water?
Name of process
What it creates

A

Hydrogen chloride dissociates in water
Dissociation = hydrogen chloride dissolves in water splitting up into H+ ions and Cl- ions
This solution of H+ ions and Cl- ions is called hydrochloride acid

24
Q

What makes a solution acidic?

A

H+ ions

25
Q

Does hydrogen chloride react with methylbenzene?

A

No

26
Q

Hydrogen chloride is __________ in water because it __________ forming _____ ions.

A

Acidic
Dissociates
H+

27
Q

Hydrogen chloride does/doesn’t dissociate with methylbenzene meaning it is/isn’t acidic because there are/are no H+ ions

A

Doesn’t
Isn’t
Are no

28
Q

What is an experiment to demonstrate a more reactive HALOGEN will displace a less reactive one from a solution of one of its salts?

A

Add halogen solution to salt solution and wait for colour change
(Eg : chlorine water + potassium bromide solution = orange solution formed (Br2))

29
Q 
Chlorine water(Cl2) + potassium bromide solution(KBr)
= ? + ?
A

Potassium chloride + orange solution (Br2)
Bromine displaced by chlorine
Chlorine more reactive

30
Q 
Bromine water(Br2) + potassium iodide solution (KI)
= ? + ?
A

Potassium bromide + brown solution (I2)
Iodine displaced by bromine
Bromine more reactive

31
Q

What is a redox reaction?

A

When oxidation And reduction Both happen

32
Q

Halogen displacement involves oxidation / reduction / both

Meaning it is a ______________ reaction

A

Both

Redox

Chemistry (4 decks)

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