Chemistry A-Level
Group 2 reactivity trends
What Group 2 reactivity trends means in Chemistry A-Level, as defined for OCR.
Definition of Group 2 reactivity trends
Check what you remember
Read the wording for your board, then hide it and explain Group 2 reactivity trends in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Reactivity increases down the group because the first and second ionisation energies decrease as atomic radius increases and shielding grows, so the outer electrons are lost more readily.
Topics that use Group 2 reactivity trends
- Group 2 (OCR A-Level)
Related terms
- Acid indigestion treatment
- Atomic radius and shielding down Group 2
- Balanced symbol equations
- Formation of 2⁺ ions
- Formation of metal hydroxides and hydrogen
- Formation of metal oxides MO
- Group 2 compounds as bases
- Group 2 reactions with dilute acids
Using Group 2 reactivity trends in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Chemistry A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge