Periodicity – A-level Revision Session Don’t worry – this isn’t being assessed!

Before we start… Describe and explain the trend in atomic radius across a period.

Which has the highest 1st ionisation energy? Sodium Caesium Lithium Potassium 92 of 136

Which has the highest 1st ionisation energy? Sodium Chlorine Phosphorus Magnesium 91 of 136

What’s the oxidation state of Manganese in MnO4-? 2 3 4 5 6 7 92 of 136

What’s the oxidation state of Phosphorus in P4O6? 2 3 4 5 6 7 90 of 136

What’s the oxidation state of Xenon in XeO3F2? 4 5 6 8 10 12 91 of 136

What’s hybridisation of carbon in C2H4? sp sp2 sp3 sp3d2 88 of 136

What’s hybridisation of boron in BCl3? sp sp2 sp3 sp3d2 91 of 136

What is the valence shell electronic configuration in F? 1s2 2s2 2p4 2s2 2p5 1s2 2s2 2p5 1s2 2s2 2p6 3s2 3p5 3s2 3p5 91 of 136

Which has the highest electronegativity? Potassium Nitrogen Calcium Boron Carbon 91 of 136

Which has the lowest electronegativity? Potassium Nitrogen Calcium Boron Carbon 93 of 136

Which bond would be the more polarised? Cl-F Br-Cl I-F Br-F I-Br 94 of 136

Which of these bonds have the correct polarities labelled? A & C B & C A & D B & D C & D A, B & C A, B & D d+ d- d- d+ B A d+ d- d- d+ C D 94 of 136

Which oxidation states are found in phosphorus compounds? 1, 3, 5 3, 5 3, 5, 6 1, 2, 3, 6 1, 2, 5, 6 91 of 136

Which has the lowest thermal stability? CaCO3 SrCO3 MgCO3 BaCO3 92 of 136

What is the correct order in terms of lattice enthalpy? KCl > MgCl2 > NaCl > MgO NaCl > KCl > MgO > MgCl2 MgCl2 > MgO > KCl > NaCl MgO > MgCl2 > NaCl > KCl 89 of 136

Which of the following bonds would you expect to be the strongest? Si-Si Ge-Ge Sn-Sn Pb-Pb 92 of 136

Which of these has the ions in the correct order of size? I- > S2- > Li+ > F- I- > S2- > F- > Li+ S2- > I- > Li+ > F- F- > I- > Li+ > S2- I- > Li+ > S2- > F- 85 of 136