S3 Chemistry

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Created by
Hazel Dempster

Subdecks (1)

Cards (37)

  • What has to happen in order for substances to react

    Particles must collide with each other
    Collisions must be successful
    collisions must have enough energy (activation energy)
  • What factors affect rate of reaction?
    Temperature, concentration, surface area, particle size and catalysts
  • What type of reaction gives out energy?

    Exothermic reaction
  • What type of reaction takes in energy?

    Endothermic reaction
  • What is an element?

    A substance that consists of atoms with the same number of protons in their nuclei
  • What type of element is found in Group 1?
    Alkali metals
  • What type of element is found between Group 2 and Group 3?

    Transition metals
  • What type of element is found in Group 7?

    Halogens
  • What type of element is found in Group 8?

    Noble gases
  • What group in the periodic table is most reactive?

    Group 1 (alkali metals)
  • What group in the periodic table is least reactive?

    Group 8 - Noble Gases
  • Why is an atom neutral?
    The number of positively charged protons is equal to the number of negatively charged electrons
  • What an isotope?
    An isotope is a variant of an element that has the same number of protons but a different number of neutrons in its nucleus and therefore has the same atomic number but a different mass number to the atom of that element
  • What type of elements form covalent bonds?

    Non-metals
  • What is a covalent bond?
    The electrostatic attraction between the negatively charge electrons of one atom, and the positively charged nucleus of another atom
  • What is a compound?
    A substance composed of two or more elements chemically bonded together.
  • What is a molecule?
    Two or more atoms held together by covalent bonds
  • What types of elements form ionic bonds?

    Metal and nonmetal
  • Ends in ide = 2 elements present
  • Ends in ite or ate = 3 elements present, 1 of which is oxygen
  • Quiz yourself…
  • What is an isotope?
    An element with the same number of protons but a different number of neutrons and therefore the same atomic number but a different mass number.
  • What is the valency of most transition metals?
    2
  • What is the valency of Silver (Ag)?
    1