The Periodic Table

Edexcel AS-level ChemistryTopic 2 of 216 lessons

Revision notes for The Periodic Table in Edexcel Chemistry (8CH0). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.

1. The Periodic TableThe modern periodic table has 118 elements arranged in order of atomic number in vertical columns called groups and rows called periods.
2. PeriodicityPeriodicity is the repeating trend in the properties of the elements across a period These include electron configuration, ionisation energy…
3. Atomic RadiiAn atom does not have a well-defined boundary so the atomic radius is measured by measuring the distance between two adjacent nuclei and then…
4. Melting and Boiling TemperaturesMelting and Boiling Temperatures The melting temperature increases across period 3 from group 1 to group 3.
5. First Ionisation EnergiesIonisation energy depends on nuclear charge shielding/ quantum shell and distance from nucleus the orbital As we go across a period, the nuclear…
6. AnomaliesIonisation Energies - anomalies Period 2: 1.

On the specification

• Topic 1: Atomic Structure and the Periodic Table

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