Ionic bonding
- Created by: will
- Created on: 19-10-13 16:18
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- Ionic bonding.
- ionic bonding is the donation of one electron from one atom to another to form + and - ions.
- These ions are joined by an electrostatic attraction.
- Elements in group 1 loose one electron, group 2 two electrons ect.
- Elements in group 7 gain one electron, group 6 two electrons ect.
- the amount of energy needed determines whether the atom gains or looses electrons.
- Cl, it is easier to gain one electron than loose seven so it forms an anion.
- Na, it is easier to loose one electron than it is to gain seven so it forms a cation.
- when solid, ionic compounds form giant lattices.
- This is because the ions repel same charges and attract opposite charges.
- This causes them to be in a regular arrangement.
- NaCl forms a cubic structure
- This causes them to be in a regular arrangement.
- This is because the ions repel same charges and attract opposite charges.
- Properties
- The conduct electricity when molten of dissolved in water
- This is because the ions are free to move around.
- they have very high melting and boiling points.
- This is because they have very strong electrostatic attractions.
- They are soluble in water but not non-polar solvents
- The ions are pulled apart by polar molecules like water. this shows that the compound is ionic.
- The conduct electricity when molten of dissolved in water
- ionic bonding is the donation of one electron from one atom to another to form + and - ions.
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