Group 1 - Alkali metals

Simone Matthews
Mind Map by , created over 4 years ago

a mind map of properties of group 1 on the periodic table

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Simone Matthews
Created by Simone Matthews over 4 years ago
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Group 1 - Alkali metals
1 Low density
1.1 Float in water
2 React with other non-metals
2.1 Form ionic compounds
2.1.1 Has 1 electron in outershell
2.1.1.1 Needs to lose one electron
2.1.1.1.1 Ion has +1 charge
3 React with water
3.1 Release hydrogen
3.2 e.g. Lithium + water -> Hydrogen + lithium Oxide
4 Form hydroxides
4.1 Hydroxides dissolve in water
4.1.1 Give alkali solution
4.1.1.1 OH- (Hydroxide) ions cause the solution to be alkali
5 Further down the group you go
5.1 The more reactive the element
5.1.1 Bigger atom = electron is further from nucleus
5.1.1.1 electrostatic forces between the nucleus and last electron are weaker
5.1.1.1.1 shells create a shielding effect, reduces the positivity of the nucleus = more reactive
5.1.1.1.1.1 So outer shell more easily lost
5.2 The lower the melting/boiling point
6 All soft
6.1 You can cut them with a knife