Periodic Trend Homework

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Name:__________________________________ Period:_________________________________


Answer the following question in a clear, concise manner.


1. Arrange the following elements in increasing EN: (Mg, Cl, P, Rb)

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2. Align these elements in decreasing atomic size (radii), Fe, Ca, Al, O, Ba

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3. Define Ionization Energy (IE) and give the general trends for IE (include reason).




4. Give one of the two exception to the 1st IE for across a period and the reason for this trend (include an example in your discussion)




5. Give the most metallic element on the periodic table: ____________________

6. Which family is least reactive on the periodic table? _____________________

Why? (Hint: Think valence electrons) ____________________________________________

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7. List the following elements in decreasing atomic radii (O, C, Ni, Ca, Cs)

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8. Define Electronegativity (EN) and give the general trend with reasons (include example in discussion)







9. What are the two factors in determining Columbic Force (CF) between valence electron and positive nucleus?

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10. Give the general trend for CF on periodic table and the reason for it.





11. What is another way of explaining CF using the valence electron as the main perspective. What happens when you go down a group and across a period

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