Atomic Structure (AQA)

8 Full Lesson Bundle on Atomic Structure from the AQA AS Level Chemistry specification. Please review the learning objectives below.

Lesson 1: Atomic Structure & Isotopes

1. To describe the atomic structure of an atom
2. To describe atomic structure in terms of protons, neutrons and electrons for atoms and ions, given the atomic number, mass number and any ionic charge
3. To define the term isotopes and to identify the atomic structure of isotopes in terms of protons, neutrons and electrons

Lesson 2: Relative Masses

1. Define the terms relative atomic mass, relative formula mass and relative molecular mass
2. Calculate the relative formula mass and relative molecular mass of compounds and molecules

Lesson 3: TOF Mass Spectrometry

1. To understand the principles of a simple time of flight (TOF) mass spectrometer
2. To explain how the mass of an elemental ion is linked to its velocity
3. To be able to apply the kinetic energy equation (KE = ½ mv2) to complete TOF calculations

Lesson 4: Interpreting Mass Spectra

1. To determine the relative atomic masses and relative abundances of isotopes of an element using mass spectroscopy
2. To calculate the relative atomic mass of an element from mass spectra data

Lesson 5: Atomic Orbitals (Electronic Configuration)

1. To know that atomic orbitals are a region around the nucleus that occupy electrons
2. To illustrate the shape of s, p and d orbitals
3. To describe the number of orbitals that make up the s, p and d sub shells and the number of electrons that fill the sub shells
4. To deduce the electronic configuration of atoms and ions in the s and p-block

Lesson 6: The Structure of The Periodic Table

1. To know how the periodic table is arranged
2. To describe the periodic trend in electron configurations across periods 2 and 3
3. To classify elements into s, p and d blocks

Lesson 7: Ionisation Energy (Part 1)

1. To define the term ‘first ionisation energy’ and successive ionisation energies
2. To describe the factors affecting ionisation energy
3. To explain the trend in successive ionisation energies of an element

Lesson 8: Ionisation Energy (Part 2)

1. To explain the trend in first ionisation energies down a group
2. To explain the trend in first ionisation energies across period 2
3. To explain the trend in first ionisation energies across period 3