Podcast
Questions and Answers
What happens to Sodium when it loses one valence electron?
What happens to Sodium when it loses one valence electron?
- It gains another valence electron.
- It becomes a positively charged cation. (correct)
- It becomes a negatively charged anion.
- It remains neutral and unchanged.
Which rule explains why atoms tend to lose or gain electrons?
Which rule explains why atoms tend to lose or gain electrons?
- Valence Rule
- Octet Rule (correct)
- Quantum Rule
- Energy Rule
What type of ion does an atom become when it gains electrons?
What type of ion does an atom become when it gains electrons?
- Cation
- Anion (correct)
- Neutral Ion
- Radical Ion
Which of the following statements is true regarding metals and nonmetals?
Which of the following statements is true regarding metals and nonmetals?
What is the valence electron configuration for Chlorine when it becomes stable?
What is the valence electron configuration for Chlorine when it becomes stable?
If Boron were to lose three electrons, what type of ion would it become?
If Boron were to lose three electrons, what type of ion would it become?
In the bond between Sodium and Chlorine, what is the role of Sodium?
In the bond between Sodium and Chlorine, what is the role of Sodium?
How many valence electrons does a typical metal atom have?
How many valence electrons does a typical metal atom have?
Flashcards
What are ions?
What are ions?
Ions are atoms or groups of atoms that have gained or lost electrons, giving them a positive or negative charge.
How are ions formed?
How are ions formed?
Atoms form ions by losing or gaining electrons to achieve a stable configuration with 8 valence electrons (octet rule).
What is a cation?
What is a cation?
A cation is a positively charged ion formed when an atom loses electrons.
What is an anion?
What is an anion?
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What is the octet rule?
What is the octet rule?
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How do metals form ions?
How do metals form ions?
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How do nonmetals form ions?
How do nonmetals form ions?
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Why are ions important?
Why are ions important?
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Study Notes
Ions: Formation and Characteristics
- Ions are atoms or groups of atoms with a positive or negative charge
- Ions form when an atom loses or gains electrons
- Metals tend to lose electrons to form positive ions (cations)
- Nonmetals tend to gain electrons to form negative ions (anions)
- Atoms gain or lose electrons to achieve a stable electron configuration (octet rule)
Example: Sodium and Chlorine
- Sodium (Na) is a metal in Group 1A, with 1 valence electron
- Chlorine (Cl) is a nonmetal in Group 7A, with 7 valence electrons
- Sodium loses its one valence electron to chlorine
- Chlorine gains the electron to achieve a stable electron configuration
- Sodium becomes a cation, and chlorine becomes an anion
Cations vs Anions
- A cation is a positively charged ion formed when an atom loses electrons
- An anion is a negatively charged ion formed when an atom gains electrons
Example Exercise: Elements and Ions
- Elements in the table show valence electrons, metal vs nonmetal classification, and whether they lose or gain electrons and form cations (positive ions) or anions (negative ions)
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