Quantum Number Worksheet #1
Name:_____________________________
Electrons in Atoms Test Review
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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 of a wave having a frequency of 3.44X1015 Hz?
2. What is the energy of one photon of violet light?
3. A radio station broadcasts with a frequency of 9.47X107 Hz. 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 f: 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
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 13.0 moles of lithium oxide, Li2O, contain?
3. In a 200. gram sample of calcium oxide, CaO, how many ions are present?
4. In a 325 gram sample of potassium sulfide, K2S, how many ions are present?
5. In a 554 gram sample of aluminum oxide, Al2O3, how many ions are present?
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