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Questions and Answers
An element from Group 2 and an element from Group 16 combine to form an ionic compound. What is the most likely ratio of these elements in the compound?
An element from Group 2 and an element from Group 16 combine to form an ionic compound. What is the most likely ratio of these elements in the compound?
- 1:2
- 1:3
- 2:1
- 1:1 (correct)
Which of the following best describes why elements form ions?
Which of the following best describes why elements form ions?
- To achieve a stable electron configuration, resembling a noble gas. (correct)
- To become radioactive.
- To increase their atomic mass.
- To decrease their reactivity with other elements.
A metal from which group is most likely to form an ion with a +3 charge?
A metal from which group is most likely to form an ion with a +3 charge?
- Group 2
- Group 13 (correct)
- Group 15
- Group 1
Which of the following characteristics is most likely associated with ionic compounds due to their crystal lattice structure?
Which of the following characteristics is most likely associated with ionic compounds due to their crystal lattice structure?
Which of the following elements is most likely to form a negative ion?
Which of the following elements is most likely to form a negative ion?
In an ionic compound formed between potassium (K) and oxygen (O), what are the charges on the ions and their ratio?
In an ionic compound formed between potassium (K) and oxygen (O), what are the charges on the ions and their ratio?
What is the primary force holding ions together in an ionic bond?
What is the primary force holding ions together in an ionic bond?
Which of the following is an example of a binary ionic compound?
Which of the following is an example of a binary ionic compound?
Which of the following elements are most likely to exhibit pseudo-noble gas configuration when forming ions?
Which of the following elements are most likely to exhibit pseudo-noble gas configuration when forming ions?
An unknown element readily accepts two electrons to form a stable ion. To which group in the periodic table does this element most likely belong?
An unknown element readily accepts two electrons to form a stable ion. To which group in the periodic table does this element most likely belong?
Flashcards
Formation of Positive Ions
Formation of Positive Ions
Formed by donating electrons to achieve stability.
Formation of Negative Ions
Formation of Negative Ions
Formed by accepting electrons to achieve a stable electron configuration.
Why Elements Form Ions
Why Elements Form Ions
Elements form ions to achieve stability and obtain a full outer electron shell (8 valence electrons).
Pseudo-Noble Gas Configuration
Pseudo-Noble Gas Configuration
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Ionic Bond
Ionic Bond
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Ionic Compound
Ionic Compound
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Binary Ionic Compounds
Binary Ionic Compounds
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Crystal Lattice
Crystal Lattice
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Study Notes
- Ions are formed when atoms gain or lose electrons to achieve stability
- Atoms achieve stability by having 8 valence electrons
Positive Ion Formation
- Positive ions are formed through the donation of electrons
- Metals form positive ions
- The number of electrons donated is determined by the element's group number
- Group 1 elements donate 1 electron
- Group 2 elements donate 2 electrons
- Group 13 elements donate 3 electrons
Negative Ion Formation
- Negative ions are formed through the acceptance of electrons
- Nonmetals form negative ions
- The amount of electrons accepted is determined by the element's group
- Group 15 elements accept 3 electrons
- Group 16 elements accept 2 electrons
- Group 17 elements accept 1 electron
Pseudo-Noble Gas Configuration
- Relatively stable electron arrangements
- Displayed by transition metals
Ionic Bonds
- Ionic bonds constitute the electrostatic force binding oppositely charged particles together within an ionic compound
Ionic Compound
- Compounds containing ionic bonds
Binary Ionic Compounds
- Contain only two different elements
Forming Neutral Compounds
- Ions combine in a ratio that ensures the number of electrons lost equals the number of electrons gained, creating a neutral compound
Properties of Ionic Compounds
- Ionic bonds form a crystal lattice structure
- Crystal lattice structures are rigid and solid
- Crystal lattice structures are formed by alternating positive and negative ions
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