Chemistry CC14

• What group of the periodic table do alkali metals belong to?

  Group 1
• What does the verb "bleach" mean?

  To take the colour out of something
• What is a chemical property?

  How a substance reacts with other substances
• What does "diatomic" refer to?

  Two atoms chemically bonded together
• What is a disinfectant?

  Something that destroys disease-carrying microorganisms
• What is a displacement reaction?

  When a more reactive element displaces a less reactive element
• What is electronic configuration?

  The arrangement of electrons in shells
• What is a group in chemistry?

  A vertical column of elements
• What is a halide?

  A compound formed between a halogen and another element
• What is a halogen?

  An element in group 7 of the periodic table
• What does it mean if a substance is described as inert?

  It does not react
• What is a noble gas?

  An unreactive gas in group 0
• What is oxidation in a chemical reaction?

  A reaction where oxygen is added
• What does it mean when a substance is oxidised?

  It has gained oxygen or lost electrons
• What is a period in chemistry?

  A horizontal row in the periodic table
• What is the periodic table?

  A chart of elements by atomic number
• What is a physical property?

  A description of material behavior and response
• What does reactivity describe?

  How quickly or vigorously something reacts
• What is a redox reaction?

  A reaction involving both oxidation and reduction
• What does it mean when a substance is reduced?

  It has lost oxygen or gained electrons
• What is reduction in a chemical reaction?

  A reaction where oxygen is removed
• What is a salt in chemistry?

  A compound formed by acid-base neutralisation
• How does reactivity change in Group 1 elements?

  • More reactive down the group
  • Outer electron is further from nucleus
  • Easier to lose outer electron
• How does reactivity change in Group 7 elements?

  • More reactive up the group
  • Outer shell is closer to nucleus
  • Easier to attract an electron
• What is the reactivity of Group 0 elements?

  • Unreactive
  • Outer shell is already full
• What group do alkali metals belong to in the periodic table?

  Group 1
• What does the verb "bleach" mean?

  To take the colour out of something
• What is a chemical property?

  How a substance reacts with other substances
• What does "diatomic" refer to?

  Two atoms chemically bonded together
• What is a disinfectant?

  Something that destroys disease-carrying microorganisms
• What is a displacement reaction?

  When a more reactive element displaces a less reactive element
• What is electronic configuration?

  The arrangement of electrons in shells
• What is a group in chemistry?

  A vertical column of elements
• What is a halide?

  A compound formed between a halogen and another element
• What is a halogen?

  An element in group 7 of the periodic table
• What does "inert" mean in chemistry?

  Does not react
• What is a noble gas?

  An unreactive gas in group 0
• What is oxidation in a chemical reaction?

  A reaction where oxygen is added or electrons are lost
• What does it mean if a substance is oxidised?

  It has gained oxygen or lost electrons
• What is a period in chemistry?

  A horizontal row in the periodic table