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Questions and Answers
Which property of elements generally decreases across a period in the periodic table?
Which property of elements generally decreases across a period in the periodic table?
In which group of the periodic table do elements have the highest electronegativity?
In which group of the periodic table do elements have the highest electronegativity?
Which property of elements generally increases as you move from left to right across a period in the periodic table?
Which property of elements generally increases as you move from left to right across a period in the periodic table?
Which trend describes the variation of metallic character as you move from top to bottom within a group in the periodic table?
Which trend describes the variation of metallic character as you move from top to bottom within a group in the periodic table?
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Which trend describes the variation of atomic radius as you move from top to bottom within a group in the periodic table?
Which trend describes the variation of atomic radius as you move from top to bottom within a group in the periodic table?
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In which group of the periodic table do elements generally have the lowest electron affinity?
In which group of the periodic table do elements generally have the lowest electron affinity?
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Study Notes
Trends Across Periods and Groups in the Periodic Table
- Electronegativity typically increases from left to right across a period, as elements become more effective at attracting electrons due to increasing nuclear charge.
- The elements with the highest electronegativity are found in Group 17 (halogens), particularly fluorine, which has the highest value.
- Atomic radius generally decreases from left to right across a period due to increased nuclear charge pulling electrons closer to the nucleus.
- Metallic character decreases as you move from left to right across a period, with metals being more prevalent on the left and transitioning to nonmetals on the right.
- As you move from top to bottom within a group, the atomic radius increases due to the addition of electron shells.
- Elements in Group 18 (noble gases) generally have the lowest electron affinity because they have full outer electron shells, making them stable and less likely to gain additional electrons.
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Description
Test your knowledge of periodic table properties and variations with this quiz. Explore trends in electronegativity, metallic character, and more!
