Group 1 - Alkalis Flashcards

1
Q

What group is it? ( alkalis )

A

Group 1 / first column

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2
Q

G1 - How many electrons in their outer shell

A

1, they always lose 1 electron

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3
Q

G1 - What ions do they become

A

+1 ions

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4
Q

G1 - List some properties of the alkali metals

A
  • low density
  • soft
  • shiny when recently cut
    • react quickly with oxygen
  • dull color
  • very reactive
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5
Q

G1 - How does the reactivity increase in the group?

A

As it goes down the group

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6
Q

G1 - why does it get more reactive going down they group?

A

Distance - further away from nucleus, easier to remove it ( attracted less strongly )
Shielding

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7
Q

G1 - observation of the metal with oxygen at room temp

A

Grey / dull white

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8
Q

G1 - observation when heated ( oxygen )

A

Bright light
White smoke
Burn vigorously

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9
Q

G1 - what do they form in water

A

Colorless solutions

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10
Q

G1 - reaction with chlorine

A

White solid farmed
Salt formed
Dissolve in water ( colorless solutions )

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11
Q

G1 - observation with water

A
Very very vigorous 
Fizzing 
Metal floats 
Moves around the surface 
Metal eventually dissolves

Can Burst into flame

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