Group 1 & 7

Cards (30)

  • What word describes how lithium, sodium and potassium react when put in water?
    Vigorously
  • What is produced when group 1 reacts with water?
    A metal hydroxide solution
  • What are group 1 elements called?
    Alkaline metals
  • What is the word equation for sodium reacting with water?
    Sodium + Water --> Sodium hydroxide + Hydrogen
  • What is the chemical symbol for sodium reacting with water?
    2Na(s) + 2H2O(l)→ 2NaOH(aq) + H2(s)
  • What is produced when alkali metals react with oxygen?

    Metal oxide
  • Lithium + Oxygen
    Lithium oxide (Li2O)
  • Sodium + Oxygen
    - Sodium oxide (NaO2)
    - Sodium peroxide (Na2O2)
  • Potassium + Oxygen
    - Potassium peroxide (K202)
    - Potassium superoxide (KO2)
  • As you go ___ Group 1 the elements become ___ reactive
    Down
    More
  • Lithium takes ____ than sodium or potassium to react, so it's the ___ reactive
    Longer
    Least
  • Potassium takes the ____ time to react of these three elements, so it's the ___ reactive
    Shortest
    Most
  • Potassium reacts to form its oxide ___ than sodium and lithium when left in air
    Quicker
  • All Group 1 metals have ____ in their outer shell
    1 electron
  • As you go down Group 1, the ___ is in a shell that's ____ from the nucleus
    Outermost electron
    Furthest
  • Which means the ___ between the outermost electron and the nucleus becomes ___
    Attraction
    Less
  • So as you go down Group 1 the atoms get bigger, the outer electron is more ___, and the metals are ___
    Easily lost
    More reactive
  • What are group 7 called in the periodic table?
    Halogens
  • As the atomic number of the halogens ___, the elements have a darker colour and a ____.
    Increases
    Higher boiling point
  • What is chlorine like at room temperature?
    Chlorine (Cl2) is a fairly reactive, poisonous, green gas
  • What is bromine like at room temperature?
    Bromine (Br2) is a poisonous, red-brown liquid, which gives off an orange vapour
  • What is iodine like at room temperature?
    Iodine (I2) is a dark grey crystalline solid which gives off a purple vapour when heated
  • Chlorine
    Atomic number:
    Colour:
    State at room temp:
    Boiling point:
    17
    Green
    Gas
    -34 Celsius
  • Bromine
    Atomic number:
    Colour:
    State at room temp:
    Boiling point:
    35
    Red-brown
    Liquid
    59 Celsius
  • Iodine
    Atomic number:
    Colour:
    State at room temp:
    Boiling point:
    53
    Dark grey
    Solid
    185 Celsius
  • The ___ Group 7 an element is, the ___ reactive it is
    Higher up
    More
  • All Group 7 elements have ___ in their outer shell.
    7 electrons
  • They can ___ one electron to form a ___
    Gain
    1- ion
  • The easier it is for a halogen atom to __ an electron, the __ reactive the halogen will be.
    Attract
    More
  • As you go down Group 7, the halogens become __ reactive — it gets ___ to attract the extra electron to __ the outer shell when it's ___ away from the nucleus (the atomic radius is larger).
    Less
    Harder
    Fill
    Further