Questions and Answers
Elements Y and X compared. Element Y has a larger radius than Element X. Based on this you could say:
Atomic radius generally increases as we move __________.
down a group and from left to right across a period.
The atomic radius of main-group elements generally increases down a group because __________.
the principal quantum number of the valence orbitals increases.
Which one of the following atoms has the largest radius?
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Which one of the following atoms has the largest radius?
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Which one of the following atoms has the smallest radius?
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Which one of the following atoms has the largest radius?
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Which one of the following atoms has the largest atomic radius?
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Which one of the following atoms has the largest atomic radius?
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In which of the following atoms is the 2s orbital closest to the nucleus?
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Which of the following correctly lists the five atoms in order of increasing size (smallest to largest)?
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Which equation correctly represents the FIRST ionization of phosphorus?
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Which equation correctly represents the SECOND ionization of phosphorus?
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Study Notes
Atomic Radius
- Element Y has a larger atomic radius than Element X, indicating a comparison in size and potential characteristics between the two elements.
- Atomic radius generally increases down a group on the periodic table and decreases from left to right across a period.
Trends in Atomic Radius
- The atomic radius of main-group elements increases down a group due to the increasing principal quantum number of valence orbitals, resulting in greater electron shell distance from the nucleus.
Largest and Smallest Radii
- Sulfur (S) is identified as having the largest atomic radius in a specified context.
- Rubidium (Rb) is noted for possessing the largest atomic radius among certain selected elements.
- Chlorine (Cl) has the smallest atomic radius when compared with selected atoms.
- Barium (Ba) is mentioned specifically as having one of the largest atomic radii.
- Antimony (Sb) is recognized as having the largest atomic radius when compared to selected atoms.
- Aluminum (Al) is also highlighted for having a larger atomic radius over others in a specified context.
Orbitals and Nucleus Proximity
- The 2s orbital is closest to the nucleus in chlorine (Cl), emphasizing the significance of atomic structure in determining electron configuration and proximity.
Atomic Size Ordering
- The sequence of atoms F, P, 2+(g), and e- is arranged in order of increasing size, from smallest to largest, reflecting trends in atomic structure and electron interactions.
Ionization Equations
- The first ionization equation for barium (Ba) is expressed as: Ba (g) → Ba⁺(g) + e⁻.
- The second ionization equation for phosphorus (P) mirrors the first ionization equation, emphasizing the consistency in the representation of ionization processes across different elements.
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Description
This quiz explores the concept of atomic radius, focusing on how it varies across groups and periods in the periodic table. It also identifies specific elements that exhibit the largest and smallest atomic radii. Test your understanding of these essential trends in chemistry.
