IB
IBO
Chemistry
May 2009
QP-200905-Chemistry-P1(TZ1)-SL · Question 7
Question (excerpt):
2209-6110 88 Ra (226) 56 Ba 137.34 38 Sr 87.62 20 Ca 40.08 12 Mg 24.31 4 Be 9.01 2 ‡ † 89 ‡ Ac (227) 57 † La 138.91 39 Y 88.91 21 Sc 44.96 90 Th 232.04 58 Ce 140.12 72 Hf 178.49 40 Zr 91.22 22 Ti 47.9…
2209-6110 88 Ra (226) 56 Ba 137.34 38 Sr 87.62 20 Ca 40.08 12 Mg 24.31 4 Be 9.01 2 ‡ † 89 ‡ Ac (227) 57 † La 138.91 39 Y 88.91 21 Sc 44.96 90 Th 232.04 58 Ce 140.12 72 Hf 178.49 40 Zr 91.22 22 Ti 47.9…
Question Slice Image
Official Mark Scheme & Solution
The official answer and mark scheme are available to signed-in users in the PaperAce App.