CAIE A-Level Chemistry 3.1.2 Factors Affecting Electronegativity
Practise comparing attraction for bonding electrons through nuclear charge, atomic radius and shielding.
- Syllabus
- 2028–2030
- Course
- Chemistry 9701
- Level
- AS
Exam points
- link higher nuclear charge to stronger attraction when radius and shielding are comparable
- link greater atomic radius and inner-shell shielding to weaker attraction for a bonding pair
- compare all three factors before deciding which atom is more electronegative
3.1.2—Factors influencing the electronegativities question 1
The Pauling electronegativity values of elements can be used to predict the chemical properties of compounds.
Use the information in Table 1.1 to answer the following questions.
Table 1.1
O and S are in Group 16 .
Explain the difference in the Pauling electronegativity values of O and S .
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