Chemistry 8462: Atomic Structure and the Periodic Table Topical Past Paper Questions

This question is about models of the atom. Figure 2 shows two early models of the atom. Figure 2 1 Name the models of the atom shown in Figure 2. [2 marks] Model A ___ Model B ___ 2 Compare model A with the model of the atom used today. Use Figure 2. [4 marks] 3 Chadwick's experi…

This question is about displacement reactions. Iron is extracted from iron oxide by a displacement reaction with carbon. The equation for the reaction is: $$ \mathrm{Fe}_{2}\mathrm{O}_{3}+\mathrm{3C}\rightarrow2\mathrm{Fe}+\mathrm{3CO} $$ ## 1 Which substance in the equation is r…

This question is about groups in the periodic table. The elements in Group 1 become more reactive going down the group. Rubidium is below potassium in Group 1. ## 1 Rubidium and potassium are added to water Predict one observation you would see that shows that rubidium is more re…