What this topic covers
Topic 1: Atomic structure and the periodic table has 3 subtopics:
- A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
- The periodic table
- Properties of transition metals (chemistry only)
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GCSE AQA Higher Combined Science Chemistry · Topic 1 of 11
Topic 1: Atomic structure and the periodic table – GCSE AQA Higher Combined Science Chemistry revision notes
Choose a subtopic. Topic 1: Atomic structure and the periodic table covers A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, The periodic table, and Properties of transition metals (chemistry only) in GCSE AQA Higher Combined Science Chemistry. 16 lessons in 3 subtopics.
Revise Topic 1: Atomic structure and the periodic table for GCSE AQA Higher Combined Science Chemistry. 16 lessons across 3 subtopics.
16
Lessons
3
Subtopics
Topic 1: Atomic structure and the periodic table lessons by subtopic
16 lessons, grouped by subtopic.
A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
- Electrical Charges in Atoms
- Early atomic models: from spheres to plum pudding
- The nuclear model: Rutherford's breakthrough
- Refining the atom: Bohr, protons and neutrons
- Understanding Relative Atomic Mass
- Electronic Structure and Energy Levels
- What are mixtures and their properties
- Separation techniques for mixtures
The periodic table
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Frequently asked questions
What is Topic 1: Atomic structure and the periodic table?
Topic 1: Atomic structure and the periodic table covers A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, The periodic table, and Properties of transition metals (chemistry only) in GCSE AQA Higher Combined Science Chemistry. 16 lessons in 3 subtopics.
What is the plum pudding model?
The plum pudding model is Thomson's atomic model of a sphere of positive charge with negative electrons embedded throughout, like raisins in a pudding. The Early atomic models: from spheres to plum pudding notes cover this in full.
How do you calculate relative atomic mass?
Relative atomic mass = sum of (isotope mass × abundance) ÷ 100. The Understanding Relative Atomic Mass notes cover this in full.
What is the formula for relative atomic mass?
The formula for relative atomic mass is Ar = sum of (isotope mass × abundance) ÷ 100. The Understanding Relative Atomic Mass notes cover this in full.
Who discovered the neutron?
James Chadwick discovered the neutron in 1932, about 20 years after the nucleus was accepted. The Refining the atom: Bohr, protons and neutrons notes cover this in full.
What is relative atomic mass?
Relative atomic mass is the weighted mean mass of an atom of an element compared with one twelfth of the mass of a carbon-12 atom. The Understanding Relative Atomic Mass notes cover this in full.
What is the nuclear model of the atom?
The nuclear model, proposed by Rutherford in 1911, is a model of the atom where most of the mass and all the positive charge is concentrated in a tiny central nucleus, with electrons orbiting around it in mostly empty space. The The nuclear model: Rutherford's breakthrough notes cover this in full.
What is the difference between a group and a period?
A group is a vertical column; elements in the same group have the same number of electrons in their outer shell, giving them similar chemical properties. The Understanding the Periodic Table Structure notes cover this in full.
What are halogens?
Halogens are the elements in Group 7 of the periodic table, including fluorine, chlorine, bromine, iodine and astatine. The Introduction to Group 7 Halogens notes cover this in full.