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?
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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?
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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?
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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?
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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?
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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?
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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?
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Flashcards
Valence Shell Electronic Configuration of Group 15
Valence Shell Electronic Configuration of Group 15
The electrons in the outermost energy level of an atom that are involved in chemical bonding. For group 15 elements, it's ns²np³.
Ionization Enthalpy in Group 15
Ionization Enthalpy in Group 15
The measure of how easily an atom can lose an electron. It decreases down group 15 due to increasing atomic size.
Covalent Radius in Group 15
Covalent Radius in Group 15
The distance between the center of an atom and its outermost electron. It increases down the group but shows a smaller increase from As to Bi due to filled d and f orbitals.
Ionization Enthalpy of Group 15 vs Group 14
Ionization Enthalpy of Group 15 vs Group 14
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Successive Ionization Enthalpies
Successive Ionization Enthalpies
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What is the valence shell electronic configuration of Group 15 elements?
What is the valence shell electronic configuration of Group 15 elements?
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What is covalent radius and how does it change in Group 15?
What is covalent radius and how does it change in Group 15?
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What is ionization enthalpy and how does it vary in Group 15?
What is ionization enthalpy and how does it vary in Group 15?
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Why do Group 15 elements have higher ionization enthalpy than Group 14 elements?
Why do Group 15 elements have higher ionization enthalpy than Group 14 elements?
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What are successive ionization enthalpies and what is their trend?
What are successive ionization enthalpies and what is their trend?
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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
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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!