Flashcards in Structure and bonding Deck (9)
Describe, in terms of electrons, what happens when a magnesium atom reacts with chlorine atoms to produce magnesium chloride. 
- magnesium loses two electrons...
- ...and chlorine gains one electron
- which forms one magnesium and two chlorines
- therefore forming ionic bonds
Describe the structure and bonding in sodium chloride. 
- it's a lattice / giant structure
- it contains ions...
- ...Na+ and Cl−
- electrostatic attraction takes place
When sodium chloride is electrolysed, one product is chlorine.
Name the two other products from the electrolysis of sodium chloride solution. 
- sodium hydroxide
Explain why iodine has a low melting point. 
- it's made up of simple molecules...
- ...with intermolecular forces...
- ...which are weak
Explain, in terms of particles, why liquid iodine does not conduct electricity. 
- iodine has no delocalised electrons...
- iodine has no ions...
- ...therefore cannot carry charge
Explain why chlorine is a gas at room temperature, but sodium chloride is a solid at room temperature. 
- covalent bonds between atoms
- forming simple molecules
- weak attraction between molecules
- low melting point
- it forms ionic bonds...
- it forms strong bonds...
- ...in all directions...
- ...between oppositely charged ions...
- ...forming a giant lattice
- large amounts of energy are needed to break the bonds...
- ...therefore, it has a high melting point
Glass can be coloured using tiny particles of gold. Gold is a metal.
Describe the structure of a metal. 
- it's a lattice / giant structure...
- ...of positive ions...
- ...with delocalised electrons
Name the type of bonding in a molecule of water.