Podcast
Questions and Answers
What is the electronic configuration of the group 15 elements?
What is the electronic configuration of the group 15 elements?
Why is there only a small increase in covalent radius from As to Bi?
Why is there only a small increase in covalent radius from As to Bi?
How does the ionisation enthalpy of group 15 elements compare with group 14 elements in the same period?
How does the ionisation enthalpy of group 15 elements compare with group 14 elements in the same period?
What trend is observed in the ionisation enthalpy as one moves down the group?
What trend is observed in the ionisation enthalpy as one moves down the group?
Signup and view all the answers
What can be said about the covalent and ionic radii in group 15 as you go down the group?
What can be said about the covalent and ionic radii in group 15 as you go down the group?
Signup and view all the answers
What causes the extra stability of the electronic configuration in group 15 elements?
What causes the extra stability of the electronic configuration in group 15 elements?
Signup and view all the answers
Which factor contributes to the decrease in ionisation enthalpy down the group 15 elements?
Which factor contributes to the decrease in ionisation enthalpy down the group 15 elements?
Signup and view all the answers
Why is the covalent radius increase from N to P considerable, while from As to Bi it is only small?
Why is the covalent radius increase from N to P considerable, while from As to Bi it is only small?
Signup and view all the answers
Which of the following accurately describes the order of ionisation enthalpies in group 15 elements?
Which of the following accurately describes the order of ionisation enthalpies in group 15 elements?
Signup and view all the answers
How does the presence of half-filled p orbitals affect the ionisation enthalpy compared to group 14 elements?
How does the presence of half-filled p orbitals affect the ionisation enthalpy compared to group 14 elements?
Signup and view all the answers
Study Notes
Group 15 Elements - Physical and Chemical Properties
- Valence shell electronic configuration: ns2np3
- Stable electronic configuration: s orbital completely filled, p orbitals half-filled, contributing to extra stability.
- Covalent and ionic radii increase down the group.
- Significant covalent radius increase from nitrogen (N) to phosphorus (P).
- Smaller covalent radius increase from arsenic (As) to bismuth (Bi) due to filled d and/or f orbitals in heavier elements.
- Ionization enthalpy decreases down the group due to increasing atomic size.
- High ionization enthalpy compared to Group 14 elements in the same period due to stable half-filled p orbitals and smaller size.
- Successive ionization enthalpies increase predictably: ∆iH1 < ∆iH2 < ∆iH3
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on the physical and chemical properties of Group 15 elements. This quiz covers topics such as electronic configuration, covalent radii, and ionization enthalpy trends within the group. Challenge yourself to master the characteristics that define these intriguing elements!
