Atomic structure and the periodic table

    Cards (18)

    • Group 1 Alkali metals with water
      Metals + water = metal hydroxide + hydrogen
    • Group 1 Alkali metals with air/oxygen
      Metal + oxygen = Metal oxide
    • Why do metals get more reactive as you go down group 1?
      • It gets easier to lose the electron
      • Electrostatic force gets weaker the greater the distance
      • Meaning the 1 electron is easier to lose
    • The attraction between the outer electrons and the nucleus as you go down group 1 gets weaker
    • The distance between the nucleus and the outer shell electrons as you go down the group one metals increases
    • Alkali metals need to lose one electron
    • The electrostatic force gets weaker the further down the group 1 you get
    • The group number tells us how many electrons are in the outer shell
    • The period tells us how many electron shells there are
    • Isotopes are the atoms of the same element with the same number of protons and electrons but different number of neutrons
    • How do group 7 halogens react with iron?
      Iron + halogen = iron halide
    • How do group 7 halogens react with alkali metals?
      Group 7 + halogen = metal halide + metal
    • Halogens go in pairs e.g F2, Br2
    • Why do halogens get LESS reactive as you go down the group?

      One electron needs to be pulled in using electrostatic force from nucleus and the greater distance the harder it is
    • The distance between the nucleus and the outer shell increases as you go down the group 7 halogens which makes the attraction weaker
    • The size of the halogens get bigger as you go down the group
    • Halogens need to gain one electron to react
    • Halogens get less reactive as you go down the group
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