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Summary Edexcel GCSE Chemistry Topic 6 - Groups in the Periodic Table £3.99
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Summary Edexcel GCSE Chemistry Topic 6 - Groups in the Periodic Table
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Grade achieved: 9. I have put an immense amount of hard work into making this set of notes and it was well worth it as it enabled me to achieve the highest grade possible. My notes are based on class notes, online resources and the CGP textbook attached. Please don't hesitate to contact me for more...

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  • Topic 6
  • January 1, 2023
  • 6
  • 2021/2022
  • Summary

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Properties of G1 Metals

G1 metal Hydrogen, Lithium, Sodium, Potassium, Rubidium,
Cesium, Francium
They all react with water

Element Observations when they react with water
Lithium - L Effervescent, floats around, fizzes
Sodium - Na Glowed, reacts more vigorously, moves in
circular direction, dissolves, effervescent
Potassium - K Lilac flame, dissolves, most vigorous,
effervescent


Alkali metal + Water Metal Hydroxide + Hydrogen

2Na(s) + 2H2O(l) 2NaOH(aq) + H2(g)
2K(s) + 2H2O(l) 2KOH(aq) + H2(g)
2Li(s) + 2H2O(l) 2NLiOH(aq) + H2(g)

Group 1 elements will react vigorously with water, becoming a more effervescent
as you go down. Hydrogen gas is produced which sometimes catches fire. An
alkali is left behind in solution, this is why they are called alkali metals. It turns
blue black when the water also has universal indicator inside it.

Group 1 metals want to lose their outer shell:
- As you go down there are more shells meaning the atomic radius is larger,
this means that the outermost shell has a weak electrostatic force of
attraction to the nucleus so less energy is needed to remove the one
electron.
- Increase in shielding (outer electrons further away from nucleus)

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