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Questions and Answers
If an element forms an ion with a $3-$ charge, what does this indicate about its position on the Periodic Table?
If an element forms an ion with a $3-$ charge, what does this indicate about its position on the Periodic Table?
Which group in the Periodic Table consists of elements that typically form $3-$ charged ions?
Which group in the Periodic Table consists of elements that typically form $3-$ charged ions?
What characteristic of an element can be inferred if it forms X 3– ion?
What characteristic of an element can be inferred if it forms X 3– ion?
Which of the following groups is unlikely to contain an element that forms an ion with a $3-$ charge?
Which of the following groups is unlikely to contain an element that forms an ion with a $3-$ charge?
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Considering the properties of ions, which group should be ruled out for an element forming a $3-$ ion?
Considering the properties of ions, which group should be ruled out for an element forming a $3-$ ion?
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Study Notes
Periodic Trends and Ion Formation
- Elements tend to gain or lose electrons to achieve a stable electron configuration, often resembling that of a noble gas.
- The number of electrons gained or lost determines the charge of the ion formed.
- Anion formation (negative ions like X3-) involves gaining electrons. Cations (positive ions) involve losing electrons.
Group Determination
- The group number of an element on the periodic table corresponds, in many cases, to the number of valence electrons.
- The group number, combined with the charge on the ion, gives clues about how an element reaches a stable configuration.
- The ion X3- has gained three electrons.
Predicting Group Number
- Achieving a stable configuration (often involving 8 valence electrons) is a key driving force for ion formation.
- To reach a stable configuration, the element likely has 5 valence electrons to begin with (5 + 3 = 8).
- In the context of this question, an element gaining 3 electrons suggests it is likely in Group V of the periodic table.
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Description
This quiz explores the principles of periodic trends and the formation of ions. It covers topics such as electron gain or loss, the relationship between group numbers and valence electrons, and predicting group numbers based on stability. Test your understanding of how elements achieve stable electron configurations through ion formation.
