BRAINCAKEPhysical Properties
The atoms get bigger going down the group. The atomic radius increases because down the group and extra main level is added.
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Key terms in this lesson
- Delocalised electrons
- Electrons that are not associated with a single atom or bond and are free to move throughout a structure.
- Atomic radius
- A measure of the size of an atom, found by measuring the distance between two adjacent nuclei and dividing by two.
- Group
- A vertical column of the periodic table, containing elements with the same number of outer-shell electrons.
More in Group 2
- Group 2 Elements
- Ionisation Energies
- Calcium
- Reaction with Water
- Solubility of Hydroxides
- Solubility of Sulfates
All 7 lessons in Group 2 · All AQA AS-level Chemistry topics