BRAINCAKEGroup 2 Elements
Group 2 metals are called the alkaline earth metals. They include beryllium, magnesium, calcium, barium, strontium and radium which is radioactive.
The elements have two electrons in the outer s-orbital. As you go down the group the outer s-orbital is further away from the nucleus.
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Key terms in this lesson
- Atomic orbital
- A region in space around the nucleus where there is a 95% probability of finding an electron of a given energy.
- Group
- A vertical column of the periodic table, containing elements with the same number of outer-shell electrons.
More in Group 2
- Physical Properties
- Ionisation Energies
- Calcium
- Reaction with Water
- Solubility of Hydroxides
- Solubility of Sulfates
All 7 lessons in Group 2 · All AQA AS-level Chemistry topics