STRUCTURE TYPES

• EXAMPLES OF MONATOMIC SUBSTANCES?

  Group 0 elements
• EXAMPLES OF SIMPLE MOLECULAR ELEMENTS?

  H2, O2, N2, F2, Cl2, Br2, I2, S8, P4
• EXAMPLES OF SIMPLE MOLECULAR COMPOUNDS?

  non-metals with non-metals
• EXAMPLES OF GIANT COVALENT ELEMENTS?

  diamond, Si, graphite, graphene
• EXAMPLES OF GIANT COVALENT COMPOUNDS?

  SiO2
• EXAMPLES OF IONIC COMPOUNDS?

  metals with non-metals
• EXAMPLES OF METALLIC ELEMENTS?

  metals
• STRUCTURE OF MONATOMIC SUBSTANCES?

  individual atoms, very weak forces between atoms
• STRUCTURE OF SIMPLE MOLECULAR SUBSTANCES?

  individual molecules, weak forces between molecules
• HOW ARE THE ATOMS JOINED IN SIMPLE MOLECULAR SUBSTANCES?

  covalent bonds
• STRUCTURE OF GIANT COVALENT SUBSTANCES?

  lattice structure, all atoms joined together in giant network by covalent bonds
• STRUCTURE OF IONIC SUBSTANCES?

  lattice of positive and negative ions (held together by strong attraction/ electrostatic forces of attraction)
• WHAT IS IONIC BONDING?

  an electrostatic attractive force
• STRUCTURE OF METALLIC SUBSTANCES?

  lattice of metal atoms, outer shell electrons from each atom are delocalised (strong attraction between positive nucleus of atoms and cloud of negative delocalised electrons)
• WHAT TYPE OF BONDING IS FOUND IN A MONATOMIC SUBSTANCE?

  not
• WHAT TYPE OF BONDING IS FOUND IN A SIMPLE MOLECULAR SUBSTANCE?

  covalent
• WHAT TYPE OF BONDING IS FOUND IN A GIANT COVALENT SUBSTANCE?

  covalent
• WHAT TYPE OF BONDING IS FOUND IN AN IONIC SUBSTANCE?

  ionic
• WHAT TYPE OF BONDING IS FOUND IN A METALLIC SUBSTANCE?

  metallic
• WHAT ARE THE BOILING POINTS OF MONATOMIC SUBSTANCES?

  very low
• WHAT ARE THE BOILING POINTS OF SIMPLE MOLECULAR SUBSTANCES?

  low
• WHAT ARE THE BOILING POINTS OF GIANT COVALENT SUBSTANCES?

  very high
• WHAT ARE THE BOILING POINTS OF IONIC SUBSTANCES?

  high
• WHAT ARE THE BOILING POINTS OF METALLIC SUBSTANCES?

  high
• WHY IS THE BOILING POINT OF MONATOMIC SUBSTANCES VERY LOW?

  very weak forces between atoms
• WHY IS THE BOILING POINT OF SIMPLE MOLECULAR SUBSTANCES LOW?

  weak forces between molecules (strong covalent bonds do not break)
• WHY IS THE BOILING POINT OF GIANT COVALENT SUBSTANCES VERY HIGH?

  need to break many strong covalent bonds
• WHY IS THE BOILING POINT OF IONIC SUBSTANCES HIGH?

  strong electrostatic attraction between positive and negative ions
• WHY IS THE BOILING POINT OF METALLIC SUBSTANCES HIGH?

  strong electrostatic attraction between positive metal ions and delocalised negative electrons
• CONDUCTIVITY OF MONATOMIC SUBSTANCES?

  not
• CONDUCTIVITY OF SIMPLE MOLECULAR SUBSTANCES?

  not
• CONDUCTIVITY OF GIANT COVALENT SUBSTANCES?

  not (except graphite)
• CONDUCTIVITY OF IONIC SUBSTANCES?

  only when molten
• CONDUCTIVITY OF METALLIC SUBSTANCES?

  highly conductive
• WHY ARE MONATOMIC, SIMPLE MOLECULAR AND GIANT COVALENT SUBSTANCES NOT CONDUCTIVE?

  no free to move, charged particles (neutral atoms/ molecules or electrons are not delocalised)
• WHY DOES GRAPHITE CONDUCT?

  delocalised electrons
• WHY CAN IONIC SUBSTANCES CONDUCT WHEN MOLTEN?

  ions are free to move
• WHY CAN METALLIC SUBSTANCES CONDUCT?

  outer shell electrons are delocalised
• ARE MONATOMIC SUBSTANCES SOLUBLE?

  insoluble
• ARE SIMPLE MOLECULAR SUBSTANCES SOLUBLE?

  usually insoluble