Dr. Mihelcic

Honors Chemistry 2013-14

1

Honors Unit 6

Atomic Structure

Miss Adams

Honors Chemistry 1

Name: ___________________________________

Dr. Mihelcic

Honors Chemistry 2013-14

2

Homework #1: Frequency, Wavelength and the Speed of Light

Show all of your work for the problems, including the initial formula, substitution and solution:

1. What is the wavelength in m of electromagnetic radiation having a frequency of 3.44 x 109 Hz?

Which type of radiation does this correspond with?

2. What is the frequency in Hz of electromagnetic radiation having a wavelength of 4.90 x 102 nm?

Which type of radiation does this correspond with?

3. If the frequency of a wave is 7.8 x103 kHz, what is its wavelength in m? In nm?

4. What is the frequency in Hz and MHz of a laser having a wavelength of 780 nm?

5. A radio station broadcasts at a frequency of 94.7 MHz. What is the wavelength in m?

Dr. Mihelcic

Honors Chemistry 2013-14

3

Homework #2: Frequency, Wavelength and Energy Show all of your work for the problems, including the initial formula, substitution and solution:

1. What is the energy of a photon from the violet portion of the rainbow if it has a frequency of

7.23 x 1014 Hz?

2. What is the energy of a photon with a frequency of 6.32 x 1020 Hz?

3. What is the energy of a photon with a wavelength of 1.18 x 10-8 m?

4. If the energy of a photon of light is 3.75x10-12 J, what is the wavelength in nm of this sample of

light?

5. A radio station broadcasts at a frequency of 104.5 MHz. What is the energy of a photon of the

station’s electromagnetic signal?

Dr. Mihelcic

Honors Chemistry 2013-14

4

Homework Worksheet #3: Electron Configurations

Write the full electron configuration for each of the following elements:

1. C _____________________________________________________

2. Ca ____________________________________________________

3. Ni ____________________________________________________

4. K ____________________________________________________

5. Se ____________________________________________________

6. Fe ____________________________________________________

7. Cl ____________________________________________________

8. Ne ___________________________________________________

9. Zr ____________________________________________________

10. Dy ____________________________________________________________

11. Pr ____________________________________________________________

Dr. Mihelcic

Honors Chemistry 2013-14

5

Homework Worksheet #4: Electron Configurations Write the Noble Gas (short-hand) configuration for each of the following elements:

1. fluorine 11. lithium

2. phosphorus 12. zinc

3. calcium 13. carbon

4. nitrogen 14. iodine

5. iron 15. oxygen

6. argon 16. barium

7. potassium 17. lead

8. aluminum

9. magnesium

10. sulfur

Dr. Mihelcic

Honors Chemistry 2013-14

6

HW #5: Electron Configurations

I. Write both the full electron configuration for each of the following elements

as well as the noble gas (abbreviated) configuration.

1. Beryllium:_____________________________ OR _______________________

2. Nitrogen : ____________________________ OR _______________________

3. Manganese : ________________________________ OR __________________

4. Tin :__________________________________________ OR ______________

5. Tungsten:________________________________________________________

OR ________________________________

II. Identify the element for each of the following electron configurations:

1. 1s22s22p6:_______________________________________________

2. 1s22s22p63s23p64s23d9:_____________________________________

3. 1s22s22p63s23p64s23d104p65s24d105p5:__________________________

4. 1s22s22p63s23p64s23d104p65s24d105p66s24f10:_____________________

III. Determine whether the following electron configurations are valid or invalid, and if

invalid, correct it.

1. 1s22s22p23s2:____________________________________________

2. 1s22s22p63s23p63d1:_______________________________________

1s22s22p63s23p64s23d104p65s24d105p6:_________________________

Dr. Mihelcic

Honors Chemistry 2013-14

7

HW #6 - Electron Configuration and Orbital Diagrams

Directions: Please fill in the electron configuration for the following elements and then draw the orbital diagram configuration in the appropriate boxes.

F Electron Configuration

Mg Electron Configuration

Orbital Diagram Configuration Orbital Diagram Configuration

B Electron Configuration

He Electron Configuration

Orbital Diagram Configuration Orbital Diagram Configuration

Zn Electron Configuration

I Electron Configuration

Orbital Diagram Configuration Orbital Diagram Configuration

Dr. Mihelcic

Honors Chemistry 2013-14

8

Homework Worksheet #7: Electron Configurations

Write both the full electron configuration and draw the orbital configuration for each of the following

elements:

1. Si ____________________________________________________________

2. Sm ___________________________________________________________

3. Al ____________________________________________________________

4. O_____________________________________________________________

5. Mn____________________________________________________________

Dr. Mihelcic

Honors Chemistry 2013-14

9

Homework Worksheet #8: Electron Configurations Write the full electron configurations for the following:

1) lithium ________________________________________

2) oxygen ________________________________________

3) calcium ________________________________________

4) titanium ________________________________________

5) erbium ________________________________________

Draw the orbital diagrams for the following (you can use short-hand if you like with the arrows, or just

write out all of the arrows)

1) lithium

2) oxygen

3) calcium

4) titanium

5) rubidium

6) arsenic

Write the short-hand electron configurations for the following:

1) selenium ________________________________________

2) nitrogen ________________________________________

3) chlorine ________________________________________

4) iron ________________________________________

5) francium ________________________________________

6) polonium ________________________________________

Dr. Mihelcic

Honors Chemistry 2013-14

10

Electron Configuration Review (pg. 10-12)

Homework #9

PART A – FULL ELECTRON CONFIGURATION Use the patterns within the periodic table to write spdf electron configurations for the following atoms.

Symbol # e- Electron Configuration

1. Hg

2. P

3. V

4. Ge

5. Y

6. N

Dr. Mihelcic

Honors Chemistry 2013-14

11

PART B – ORBITAL NOTATION Use the patterns within the periodic table to write orbital notations (use arrows) for the following atoms.

Symbol # e- Orbital Notation

7. Mg

8. P

9. V

10. Ge

11. Kr

12. N

Dr. Mihelcic

Honors Chemistry 2013-14

12

PART C – SHORTHAND ELECTRON CONFIGURATION Use the patterns within the periodic table to write the shorthand electron configurations for the following elements.

Symbol # e- Shorthand Electron Configuration

13. Ca

14. Pb

15. F

16. U

PART D – RULES OF ELECTRON CONFIGURATIONS Which of the following “rules” is being violated in each electron configuration below? Explain your answer for each. Hund’s Rule, Pauli Exclusion Principle, Aufbau Principle

17.

__ __

1s 2s 2p

18.

___ _ _

1s 2s 2p 3s 3p

19.

_

1s 2s 2p 3s 3p

20.

1s 2s 2p 3s 3p 3d

Dr. Mihelcic

Honors Chemistry 2013-14

13

HW #10 - Periodic Trends Practice (pg. 13-14)

Directions: For each group, identify the element which fits the description.

Each element will only be used ONCE for a description in a group. Go down

the page in order.

Ba Cl Li Zn Xe

Largest atomic radius of all the above elements________

Has a full s and p sublevel ________

Ends its electron configuration in the d block ______

Alkali Metal _______

Smallest atomic radius of all the above elements_______

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F B Ge Cs Fe Ca

Lowest ionization energy of all the above elements_____

Transition metal element _______

Metalloid _______

Highest ionization energy of all the above elements ______

Alkaline Earth metal element ______

Electron configuration is 1s22s2 2p1 ______

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O Al I F Cf Mg

Forms a +3 ion _____

Ends its configuration in the f sublevel _____

Largest atomic radius of all the halogens above______

Smallest atomic radius of all the halogens above______

Non-metal which forms a -2 ion _____

Dr. Mihelcic

Honors Chemistry 2013-14

14

Periodic Trends Practice (cont.)

Rb I Te Sr

Rank the elements above from smallest to largest atomic radius:

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Be Ba Ca Sr Mg

Rank the elements above from smallest to largest ionization energy:

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C Sr Mg Cs Be

Rank the elements above from least to most electronegative:

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B In F N

Rank the elements above from lowest to highest electron affinity:

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What are the names for the following groups or areas on the periodic table?

Group 1 = ___________________________________

Group 2 = ___________________________________

Groups 3-12 = ___________________________________

Group 17 = ___________________________________

Group 18 = ___________________________________