Name:

Electron Worksheet #1

A. Electromagnetic Spectrum – Circle the correct answer. Use page 147 in your book to help you. Which of the following has the

1. longer wavelength – red light or green light?2. higher frequency – microwaves or TV waves?

3. short wavelength – blue light or ultraviolet?4. greater lambda – orange light or yellow light?

5. higher energy – red light or infrared light?6. lover energy – microwaves or radio waves?

7. linger wavelength – microwaves or IR?8. shorter wavelength – UV or IR?

9. higher frequency – violet light or blue light?10. shorter wavelength – blue light or infrared light?

11. lower frequency – violet light or blue light?12. higher frequency – green light or orange light?

13. greater energy – X-rays or microwaves?14. longer wavelength – green light or IR?

15. higher frequency – microwaves or TV waves?16. greater lambda – yellow or blue light?

17. shorter wavelength – indigo light or blue light?18. lower frequency – green or orange light?

19. higher frequency – microwaves or TV waves?20. higher energy – UV or gamma rays?

21. higher energy – UV or IR?

B. Wavelength, Frequency, and Energy Problems - Show All Work

______22. Find the color of light whose frequency is 5.21 X 1014 Hz. (Work required –look on page 149 for help)

______23. What is the wavelength of light if its frequency is 5.4 X 1014 Hz? (Work required)

______24. Find the frequency of light if its wavelength is 7.3 X 105 picometers. (Work required)

______25. Find the wavelength in cm of light whose frequency is 7.00 X 1016 Hz. (Work required)

______26. How many Joules of energy are there in one photon of orange light whose wavelength is 630nm? (Work required)

27. While doing an experiment in light, Iza Tope finds that the light emitted by his sample has a frequency of 4.62 X 1014 Hz. Help him by finding the following:

______a) the wavelength of the light (in meters)

______b) the energy of one photon of this light

______28. What is the frequency of light whose wavelength is 7.2 X 10-6cm? (Work required)

______Is this visible light? How do you know? (look on pg 147 for help)

______29. Which would have the higher frequency – light of wavelength of 521nm or light with a wavelength of 605 nm? (No work needed)

______30. Which would have the longer wavelength – light with a frequency of 4.5 X 1014 Hz or light with a frequency of 6.19 1014 Hz? (No work needed)

______31. Which has a higher energy, λ of 674nm or λ of 480nm? (No work needed)

______32. Which would have the longer wavelength, a photon with energy of 4.59 X 10-19 Joules or a photon with energy of 3.01 X 10-19 Joules? (No work needed)

Name:

Electrons Worksheet #2

A. Orbital Notation

On your own sheet of graph paper draw the complete electron configuration using orbital notation for the first 60 elements (atomic numbers 1 to 60).

B. Electron Configuration Notation and Noble Gas Notation

Write the complete electron configuration for the following elements (the atomic number has been given). Under the complete electron configuration write the configuration using noble gas notation. Titanium (atomic # 22) has been done as an example.

H#1 / Na#11
He#2 / Mg#12
Li#3 / Al#13
Be#4 / Si#14
B#5 / P#15
C#6 / S#16
N#7 / Cl#17
O#8 / Ar#18
F#9 / K#19
Ne#10 / Ca#20
Sc#21 / Se#34
Ti#22 1s22s22p63s23p64s23d2
[Ar]4s23d2 / Br#35
V#23 / Kr#36
Cr#24 / Rb#37
Mn#25 / Sr#38
Fe#26 / Y#39
Co#27 / Zr#40
Ni#28 / Nb#41
Cu#29 / Mo#42
Zn#30 / Tc#43
Ga#31 / Ru#44
Ge#32 / Rh#45
As#33 / Pd#46
Ag#47 / Xe#54
Cd#48 / Cs#55
In#49 / Ba#56
Sn#50 / La#57
Sb#51 / Ce#58
Te#52 / Pr#59
I#53 / Nd#60

C. Identify each of the following elements based on the given electron configurations:

1. 1s22s22p63s23p64s23d104p65s24d8 ______

2. 1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p67s1 ______

3. 1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p1 ______

4. 1s22s22p63s23p64s23d104p65s24d105p66s24f11 ______

5. 1s22s22p63s23p64s23d104p65s24d105p66s24f145d6 ______

6. 1s22s22p63s23p64s23d104p65s24d105p6 ______

7.1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p67s25f146d1______

D. Identify each of the following elements based on the given electron configurations:

1. [Rn]7s2 ______

2. [Xe]6s24f145d9 ______

3. [Xe]6s24f4 ______

Name:______

Electrons in Atoms Test Review

E= energy in J λ= wavelength in m (λ is the Greek letter lambda) f = frequency in Hz or s-1

A. Solve the following problems using the correct number of significant figures:

1. What is the wavelength, in nm, of a wave having a frequency of 3.44X109MHz? (1MHz = 1X106Hz)

2. What is the energy of one photon of violet light?

3. A radio station broadcasts with a frequency of 94.7 MHz. What is the  of the broadcast?

Visible Portion of Electromagnetic Spectrum
Representative / Wavelength / Color
Wavelength (nm) / Region (nm)
410 / 400-425 / Violet
470 / 425-480 / Blue
490 / 480-500 / Blue-Green
520 / 500-560 / Green
565 / 560-580 / Yellow-Green
580 / 580-585 / Yellow
600 / 585-650 / Orange
650 / 650-700 / Red

B. Determine which has the following:

  1. Higher λ: orange or green light
  2. Lower f: blue or red light
  3. Greater E: IR or UV
  4. Greater E: Gamma or X-Rays
  5. Shorter λ: FM or AM Radio
  6. Higher ν: microwave or UV
  7. Lower E: yellow or violet light
  8. Lower f: IR or red light
  9. Longer λ: TV Waves or blue light

Electromagnetic Spectrum

Wavelength

/

Type of Electromagnetic Radiation

5.55 m to 187 m OR (5.55X109 nm to 1.87X1011 nm) / AM Radio
0.187 m to 5.55 m OR (1.87X108 nm to 5.55X109 nm) / TV & FM Radio Waves
10 mm to 187 mm OR (1X107 nm to 1.87X108 nm) / Microwave
750 nm to 1,000,000 nm / Infrared (IR)
400 nm to 700 nm / Visible spectrum
10 nm to 400 nm / Ultraviolet (UV)
Less than 10 nm / X rays
Less than 0.001 nm / Gamma (γ) rays

C. Write the electron configurations for the following elements using orbital notation:

1. Sulfur

2. Silver

3. Tungsten

D. Write the complete electron configuration for the following elements:

1. Krypton

2. Californium

3. Tin

E. Write the noble gas or abbreviated electron configuration for the following elements:

1. Chlorine

2. Nickel

3. Ruthenium

4. Iridium

5. Berkelium

J. Write the complete electron configuration for the following ions and state if it is an anion or cation:

1. Mg 2+ ______2. Ca 2+______

3. H 1+ ______4. H 1-______

5. S 2- ______6. O 2-______

7. Na 1+ ______8. F 1-______

9. Cl 1- ______10. K 1+______

K. Complete the table and write the nuclear symbol for each ion:

Atomic Number / Mass Number / # protons / #neutrons / #electrons / Nuclear Symbol
38 / 53 / 36
16 / 19 / 18
53 / 75 / 54

L. Complete the following mole problems using dimensional analysis:

1. How many ions of chlorine are in 6.0 moles of magnesium chloride, MgCl2?

2. How many lithium ions would 130.6 grams of lithium oxide, Li2O, contain?

3. In a 200. gram sample of calcium nitrate, Ca(NO3)2, how many calcium ions are present?

4. A sample of potassium sulfide, K2S, contains 14.0X1026 ions of potassium. What is the mass in grams of this sample?

5. A sample of lithium oxide, Li2O, contains 16.6X1023 lithium ions. What is the mass in grams of this sample?