Download 3 Periodic Trends

C.5C: Periodic Trends
Matter and the Periodic Table
Periodic Trends
3
C.5C: Periodic Trends
Matter and the Periodic Table
Atomic Radii
Periodic Trends
2
C.5C: Periodic Trends
Matter and the Periodic Table
Ionic Radii Periodic Trends
1
Periodic Trends
Matter and the Periodic Table
Periodic Table
1
Periodic Trends
Matter and the Periodic Table
Periodic Table
1
Periodic Table Trends Practice Question
Each rectangle represents the Periodic Table. Label one rectangle “Atomic
Radii”, one rectangle “Ionic Radii”, one rectangle “Electronegativity/Electron
Affinity”, and one rectangle “Ionization Energy”. Draw TWO arrows on each
labeled indicating the trends.
**Indicate if the arrow is increasing or decreasing.
Example
Increasing
Valance Electrons
Match each of the four trends listed to its description by writing the correct
letter of the description next to the trend’s name.
Trends
_____ Ionic Radius
_____ Ionization Energy
_____ Electronegativity
_____ Atomic Radius
Descriptions
A. The amount of energy needed to remove an electron from a neutral
atom
B. The radius of a neutral atom
C. The radius of a positive or negative ion
D. The ability of an element to attract electrons when forming a chemical
bond
Answer the following questions using your notes as a guide.
1. Which element below has the smallest atomic radius? _______________
Beryllium(Be)
Oxygen(O)
Sodium(Na)
Fluorine(F)
2. Which element below has the smallest ionic radius? _________________
Lithium(Li)
Sodium(Na)
Rubidium(Rb)
Potassium(K)
3. Which element below has the lowest electronegativity? ______________
Calcium(Ca)
Gallium(Ga)
Selenium(Se)
Bromine(Br)
4. Which element below has the highest ionization energy? _____________
Strontium(Sr)
Beryllium(Be)
Magnesium(Mg) Calcium(Ca)
5. Which element has the highest electronegativity on the Periodic Table?
6. Which representative element has the largest atomic radius?
7. Place the elements below in order of decreasing ionization energy.
Aluminum(Al)
Chlorine(Cl)
Magnesium(Mg)
Sulfur (S)
[largest] __________ __________ __________ __________ [smallest]
8. Place the elements in order of increasing atomic radius.
Gallium(Ga)
Nitrogen(N)
Indium(In)
Tellurium(Te)
[smallest] __________ __________ __________ __________ [largest]
9. Choose which of the two is larger, the atom or its ion.
A. Magnesium atom (Mg) OR Magnesium ion (Mg2+) ________________
B. Oxygen atom (O) OR Oxygen ion (O2-)
________________