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Questions and Answers
Which group in the periodic table has elements with high endothermic ionization energies and very negative exothermic first electron affinities?
Which group in the periodic table has elements with high endothermic ionization energies and very negative exothermic first electron affinities?
What charge do atoms in Group 17 typically form when they gain an electron?
What charge do atoms in Group 17 typically form when they gain an electron?
What is the electron affinity of silicon, and how does it compare to that of phosphorus?
What is the electron affinity of silicon, and how does it compare to that of phosphorus?
What primarily causes the difference in electron affinities between silicon and phosphorus?
What primarily causes the difference in electron affinities between silicon and phosphorus?
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Which statement best explains why the electron affinities of elements vary significantly?
Which statement best explains why the electron affinities of elements vary significantly?
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Study Notes
Group 17 Elements
- Elements in Group 17 (halogens) exhibit high endothermic ionization energies (IE1) and very negative (exothermic) first electron affinities (EA1).
- These atoms readily gain an electron to form a −1 charged ion.
Electron Affinity Differences (Silicon and Phosphorus)
- Silicon's electron affinity is –134 kJ/mol, while phosphorus's is –72 kJ/mol.
- This difference is likely due to the electronic configuration of the atoms and the stability of their resultant ions.
Electron Affinities
- The electron affinities of elements vary significantly due to factors influencing the stability of the resultant ion.
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Description
Test your knowledge on the properties and behaviors of Group 17 elements, also known as halogens. Understand their ionization energies and electron affinities, and how these concepts differ between elements like silicon and phosphorus. Dive into the factors that affect electron affinities and the stability of ions formed by these elements.
