4.2 - Trends Across a Period: Charge, Radius, and Reactivity
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Practice Questions
Test your understanding with targeted questions
What happens to atomic radius as you move from left to right across a period?
💡 Hint: Think about the effect of more protons on the pull of the nucleus.
What is the trend in reactivity for metals across a period?
💡 Hint: Consider how easily metals can lose electrons.
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Interactive Quizzes
Quick quizzes to reinforce your learning
How does effective nuclear charge affect atomic radius?
💡 Hint: Think about what happens as more protons are added.
True or False: Reactivity of metals increases across a period.
💡 Hint: Consider the trends in electron loss.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Predict the trends of melting and boiling points as you move from Li to Ne. Provide rationale based on bonding type.
💡 Hint: Consider how the type of bonding influences temperature thresholds for states of matter.
Using effective nuclear charge, discuss why Cl has a higher electronegativity than Na.
💡 Hint: Think about how proton-to-electron ratios impact electron attraction.
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