3A - Periodicity |
1) What are the similarities in the electron configuration for the atoms of Group 7? [1]
2) a) Define first ionisation energy [3]
b) Explain the trends in atomic radius across a period [4]
c) Use your answer in (b) to explain the trends in 1st ionisation energies across a period? [5]
3) a) Explain the trends in atomic radius down a Group. [3]
b) Use your answer in (a) to explain the trends in 1st ionisation energies down a Group? [4]
4) a) Why is the melting point of magnesium greater than that of sodium? [3]
b) Why is the boiling point of carbon greater than that of oxygen? [4]