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Chemistry · Combined Science

Atomic Structure and the Periodic Table

Spec 4.1 Paper 1 📙 Higher

Subtopics

Atoms, Elements and CompoundsSpec 5.1.1.1Define atoms, elements and compounds and explain the differences between them. + Mixtures and Separation TechniquesSpec 5.1.1.2Describe physical methods for separating mixtures and the principles behind each. + Development of the Model of the AtomSpec 5.1.1.3Describe how the model of the atom developed as new evidence was discovered. + Subatomic ParticlesSpec 5.1.1.4–5.1.1.5Describe the relative charges and masses of protons, neutrons and electrons and the scale of atoms. + Relative Atomic Mass, Atomic Number and IsotopesSpec 5.1.1.6Define atomic number, mass number, isotopes and relative atomic mass — and calculate Ar from isotope abundances. + Electronic StructureSpec 5.1.1.7Describe how electrons fill shells and write electronic configurations for the first 20 elements. + The Periodic TableSpec 5.1.2.1Describe the structure of the periodic table and explain how it is organised. + Development of the Periodic TableSpec 5.1.2.2Describe how the periodic table developed, including Newlands and Mendeleev's contributions. + Metals and Non-metalsSpec 5.1.2.3Compare the properties of metals and non-metals and explain them in terms of structure and bonding. + Group 0 — Noble GasesSpec 5.1.2.4Describe the properties of noble gases and explain why they are so unreactive. + Group 1 — Alkali MetalsSpec 5.1.2.5Describe the properties of Group 1 metals and explain trends in reactivity down the group. + Group 7 — HalogensSpec 5.1.2.6Describe the properties of halogens and explain trends in reactivity down Group 7. +

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Key Equations

Mass number = protons + neutrons

Atomic number = number of protons

⭐ Higher Tier Content

Electronic structure of first 20 elements

Predicting properties from group trends

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📋 All Chemistry Topics

Bonding, Structure and Properties of Matter