7350800
Group 1 - Alkali
metals
- Low
density
- Float in
water
- Float in
water
- React with other
non-metals
- Form ionic compounds
- Has 1 electron in
outershell
- Needs to lose one
electron
- Ion has +1 charge
- Ion has +1 charge
- Needs to lose one
electron
- Has 1 electron in
outershell
- Form ionic compounds
- React with
water
- Release
hydrogen
- e.g. Lithium + water -> Hydrogen + lithium Oxide
- Release
hydrogen
- Form hydroxides
- Hydroxides dissolve in water
- Give alkali
solution
- OH- (Hydroxide) ions cause the solution to be
alkali
- OH- (Hydroxide) ions cause the solution to be
alkali
- Give alkali
solution
- Hydroxides dissolve in water
- Further down the group you go
- The more reactive the element
- Bigger atom = electron is further from nucleus
- electrostatic forces between the nucleus and last electron are
weaker
- shells create a shielding effect, reduces the positivity of the nucleus = more
reactive
- So outer shell more easily
lost
- So outer shell more easily
lost
- shells create a shielding effect, reduces the positivity of the nucleus = more
reactive
- electrostatic forces between the nucleus and last electron are
weaker
- Bigger atom = electron is further from nucleus
- The lower the melting/boiling
point
- The more reactive the element
- All soft
- You can cut them with a knife
- You can cut them with a knife
Media attachments
Want to create your own Mind Maps for free with GoConqr? Learn more.