CAIE A-Level Chemistry 1.2.3 Chemical Properties of Isotopes
Practise explaining why isotopes of one element undergo the same chemical reactions despite different masses.
- Syllabus
- 2028–2030
- Course
- Chemistry 9701
- Level
- AS
Exam points
- state that isotopes of one element have the same proton number and the same number of electrons
- link equal electron configurations, especially equal valence electrons, to the same chemical reactions
- avoid using neutron number or nuclear mass to explain ordinary chemical behaviour
1.2.3—Isotopes of the same element have the same question 1
[Maximum number: 1]
The model of the nuclear atom was first proposed by Ernest Rutherford. He developed this model on the basis of results obtained from an experiment using gold metal foil.
A sample of gold found in the earth consists of only one isotope.
A different sample of gold contains more than one isotope.
Suggest why this different sample of gold has the same chemical properties as the sample found in the earth.
same number of electrons/electronic structure
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