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ADDITIONAL CHEMISTRY C456 > Group 1 Aklali metals > Flashcards

Group 1 Aklali metals Flashcards

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0
Q

What is the electron configuration of Lithium?

A

2,1

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1
Q

What are the first 3 alkali metals?

A

Lithium, Sodium, Potassium

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2
Q

What is the electron configuration of sodium?

A

2,8,1

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3
Q

What is the electron configuration of Potassium?

A

2,8,8,1

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4
Q

How do group 1 atoms form ions?

A

They lose 1 electron

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5
Q

What is the charge on a Group 1 ion?

A

+1

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6
Q

What is the name for positive ions?

A

Cations

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7
Q

What are negative ions known as?

A

Anions

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8
Q

What do Group 1 metals react with?

A

Water, halogens (group 7) and oxygen.

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9
Q

What is the word equation for sodium reacting with water?

A

sodium + water –> sodium hydroxide + hydrogen

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10
Q

what is the word equation for Potassium reacting with oxygen?

A

Potassium + oxygen –> Potassium Oxide

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11
Q

What is the colour of Flourine?

A

Pale Yellow

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12
Q

What is the colour of Chlorine?

A

Green

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13
Q

What is the colour of Bromine?

A

Orange/Brown

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14
Q

what is the colour of Iodine?

A

Grey/purple

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15
Q

At room temperature Fluorine is in what state?G

A

Gas

16
Q

At room temperature Chlorine is in what state?Gas

A

Gas

17
Q

At room temperature, Bromine is in what state?

A

Liquid

18
Q

At room temperature iodine is in what state?

A

Solid

19
Q

What colour vapours does Bromine produce?

A

Orange

20
Q

what colour vapours do Iodine produce?Purple

A

Purple

21
Q

what is an ionic bond?

A

The force of attraction between positively and negatively charged ions

22
Q

What is the charge on a sodium ion?

A

+1

23
Q

What is the charge on a Fluoride ion?

A

-1

24
Q

what is the formula for Sodium chloride

A

NaCl

25
Q

What do you call the shape of an ionic crystal?

A

Giant ionic lattice

26
Q

How do you break down giant ionic lattices?

A

Dissolve the substance in water or turn it into a liquid (melt it)

27
Q

What happens the the ions when an ionic lattice is dissolved in water?

A

The substance can conduct electricity as the ions are free to flow

28
Q

What are the hazard symbols associated with group 1 metals?

A

They are flammable, their salts (hydroxides) are corrosive.

29
Q

What precautions should you take when working with Group 1 metals?

A

Wear safety goggles, watch teacher demonstration, use a safety screen, don’t use near naked flames, wear gloves

30
Q

What uses do group 7 have?

A

All have disinfectant properties.
Chlorine water can be used to sterilise water
Also found in disinfectants
Iodine solution used to sterilise skin before operations

ADDITIONAL CHEMISTRY C456 (1 decks)

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