Periodic table, C2

• Group 0-What are they called ?

  Noble gases
• Group 0-How many electrons are there in the outer shell?

  8/Full
• Group 0-Do they gain or lose electrons, why?

  No, because they have full shells means they are stable and unreactive (inert). They don't bond to form molecules.
• Group 0-Does the boiling point increase or decrease as you go down the group?

  Increase
• Group 1-What are they called?

  Alkali metals
• Complete the equation-Lithium + Oxygen

  -> Lithium oxide
• Complete the equation-Lithium + Chlorine

  -> Lithium chloride
• Complete the equation-Lithium + water

  -> Lithium hydroxide + Hydrogen
• Group 1-Do the atoms increase or decrease in size?

  Increase
• Group 1-Is the electrostatic attraction between the nucleus weaker or stronger, why? Do they lose or gain electrons?

  Weaker, because the outer electron is further away from the nucleus and there are more shells shielding the outer electron from the nucleus. They lose the outer electron
• Group 1-Does the melting and boiling point increase or decrease as you go down the group?

  Increase
• What is the pneumonic 4 diatomic elements?

  Have No Fear Of Ice Cold Beer.
• What are the diatomic elements?

  Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, Bromine
• What are group 7 elements called?

  Halogens
• Group 7-Are they non metals or metals?

  Non metals that exist as molecules made up of pairs of atoms
• Group 7-Does the melting and boiling point increase or decrease as you go down the group?

  Increase
• Group 7-Does the reactivity increase or decrease as you go down the group?

  Decrease
• Group 7-Does the atom size increase or decrease?

  Increase
• Group 7-Is the electrostatic attraction between the nucleus weaker or stronger, why? Is it harder or easier to gain electrons ?

  Weaker because the outer shell is further away from the nucleus and there are more shells between the nucleus and outer shell. Harder.
• What is a displacement reaction?

  When the more reactive element takes the place of the less reactive element in a reaction. E.g Fl + KCl -> KFl + Cl
• How are elements ordered in the first lists of elements?

  By atomic mass
• Are there gaps in the first lists of elements?

  No
• How are elements grouped in the first lists of elements?

  Not grouped
• Metals and non metals in the first lists of elements?

  No clear distinction
• Problems with the first lists of elements?

  Some elements grouped inappropriately
• How are elements grouped in Mendeleev's periodic table?

  Normally by atomic mass but some elements were swapped around.
• Are there gaps in Mendeleev's periodic table?

  Yes, gaps left for undiscovered elements
• How are elements grouped in Mendeleev's periodic table ?

  Grouped by chemical properties
• Metals and non metals in Mendeleev's periodic table?


  No clear distinction
• Problems with Mendeleev's periodic table?

  Incomplete, with no explanations to why some elements had to be swapped to fit in the appropriate groups
• How is the modern periodic table ordered ?

  By atomic number
• Are there gaps in the modern periodic table?

  No, all elements up to a certain atomic number have been discovered
• How r elements grouped in the modern periodic table?

  Grouped by the number of electrons in the outer shells.
• Metals and non metals in the modern periodic table?

  Metals to the left, non metals to the right