C1

• What is the type of bonding between metals and non-metals?

  Ionic
• What charge ion do group 2 metals form?

  +2
• What type of bondings do non-metals have?

  Covalent
• Why are metals good electrical conductors?

  They have delocalised electrons
• What is electron configuration of a fluoride ion?

  2.8

  
• What is the relative mass of a neutron?

  1
• What type of bonding does sodium (Na) have?

  Metallic
• What are the melting points of ionic compounds?

  High
• What is an ion?

  An atom that's lost or gained electrons
• What is the charge of an electron?

  -1
• Why do ionic compounds conduct when molten/dissolved?

  The ions are free to move and carry charge
• What is the bonding in aluminium nitride?

  Ionic
• Why do metals have a high melting point?

  Strong forces between positive ions and delocalised electrons
• State the formula and charge of hydroxide ion

  OH-
• Do non-metals form positive ions?

  No
• What type of bonding does water have?

  Covalent
• Are forces between molecules strong or weak?

  weak
• What type of bonding does iron have?

  Metallic
• What charge ions does group 1 form?

  +1
• What is the overall charge of an atom?

  Uncharged
• What is the formula for sodium chloride?

  NaCl
• What is the relative mass of an electron?

  0
• Do non-metals gain electrons?

  Yes
• What is a molecule?


  A group of atoms covalently bonded
• What is the charge of a proton?

  +1
• Do ionic compounds conduct electricity?

  Only when molten or dissolved in water
• How do you calculate the number of neutrons in an atom?

  Mass number - atomic number
• Are covalent bonds strong or weak?

  Strong
• Why do small molecules have low melting and boiling points?

  There are weak forces between the molecules
• What is the mass number of an atom?

  Number of protons and neutrons
• What charge ion do group 6 non-metals form?

  -2
• What is the charge of a neutron?

  Neutral
• What charge ion do group 7 non-metals form?

  -1
• Do metals form positive or negative ions?

  Positive
• Do metal atoms lose or gain electrons?

  Lose
• What type of bonding do metals have?

  Metallic
• What is the relative mass of a proton?

  1
• What charge ions do group 3 metals form?

  +3
• What is the atomic number of an atom?

  Number of protons or electrons
• Do metals have a high or low melting point?

  High