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Light Notes Cheat Sheet, Cheat Sheet of Chemistry

Chemistry

Light Notes Cheat Sheet for test

Typology: Cheat Sheet

2020/2021

Uploaded on 11/08/2023

amelia-salamy
amelia-salamy 🇺🇸

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Honors Chemistry
Light
1. (review) Is light classified as matter?
2. Please diagram an example of a light wave.
3. The wavelength or (_____) of the light wave is:
4. Please label where a wavelength would be on your light wave.
5. The frequency of a wave is:
6. What is the symbol used for frequency?_________ The unit ?______
7. How can we relate frequency, wavelength and the speed of light?
8. What is the wavelength of the yellow sodium emission that has a frequency of 5.09
x 1014/s?
9. What is the range of wavelengths of visible light?
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Honors Chemistry Light

  1. (review) Is light classified as matter?
  2. Please diagram an example of a light wave.
  3. The wavelength or (_____) of the light wave is:
  4. Please label where a wavelength would be on your light wave.
  5. The frequency of a wave is:
  6. What is the symbol used for frequency?_________ The unit ?______
  7. How can we relate frequency, wavelength and the speed of light?
  8. What is the wavelength of the yellow sodium emission that has a frequency of 5. x 10^14 /s?
  9. What is the range of wavelengths of visible light?
  1. The electromagnetic spectrum is:
  2. The visible light spectrum is :
  1. When looking into a prism we see a continuous spectrum. What does that mean in terms of light waves?
  2. What happens with the light spectrum of a heated gas?
  3. Who was the scientist that was able to correlate the stability of hydrogen and the line spectrum of the gases?
  4. When an electron changes energy levels, what has to happen?
  5. What did the theory (Bohr’s theory) of assigning energy levels to atoms lead to?
  6. What exactly is quantum mechanics?
  7. According to Einstein, does light exist as a particle or a wave?
  8. Schrödinger worked with Heisenberg. What was the uncertainty principle?
  9. What did the findings of Heisenberg and Schrödinger tell us?

Periodic Trends Please define atomic radius

  1. Atomic radii: Please graph the atomic radii. Put atomic number on the x-axis (# 1-20) and the radii in picometers on the y-axis. (0-220)
  2. Where are the peaks in the atomic radii? Why do you think this happens?
  1. Explain how the effective nuclear charge and electron shielding are related (you may have to look these up)
  2. Please explain what the first ionization energy is in your own words.
  3. What are the trends of the first ionization energy? a. Periodic trends: Increases b. Group trends: Decreases
  4. What is electron affinity?
  5. What is electronegativity?
  6. What are the trends in electronegativity in terms of the entire periodic table (Where is the most electronegative atom located, where is the least?)
  7. Explain what ionic radii is:
  8. What are the trends associated with ionic radii?
  9. How do the trends of ionic radii and atomic radii compare to each other?
  10. Electrons contain a _____________ charge, therefore when they come in close contact with one another, what will happen?
  1. Electrons try to arrange themselves so they are as far away from one another as possible. How do they do this?
  2. For each orbital (or sub shell) there can be a maximum of ________ electrons.
  3. (recall) how many electrons can fit into the first shell? _______ How many valence electrons are in the other energy levels? _______
  4. If only two electrons can fit into an orbital, how many orbital will the following energy levels have? a. Level 1 ______ b. Level 2 ______ c. Level 3 ______
  5. What is electron configuration?
  6. What do each of the numbers in the electron configuration below represent?

3s

  1. Please write the electron configuration for the following elements: a. Li _________________ b. P ___________________ c. Cl ________________ d. K _________________ e. Fe ________________

b. Pauli exclusion principle: c. Aufbau principle:

  1. We can now separate the periodic table into sub shells or orbitals. There are four different sub-orbitals: s, p, d, and f Where are they located? a. s orbitals: b. p orbital: c. d orbital: d. f orbital:
  2. What is an orbital diagram?
  3. Please write the electron configuration for fluorine:
  4. Please write an orbital diagram for fluorine:

1s 2s 2p 3s 3p 4s

  1. We say that fluorine (above) is in its ground state, what does that mean?
  2. Please write the orbital diagram for the fluorine ion 1s 2s 2p 3s 3p 4s
  3. What do you have to do when writing orbital notations or electron configurations of ions?
  4. What is the noble gas notation?
  5. Please write the noble gas notation for the following: a. Y ______________________ b. Se _______________________ c. Ag ____________________ d. Cl ______________________
  6. Each orbital has a specific shape. This is how the electrons stay separate from one another.
  1. What is the magnetic quantum number (ml)?
  2. Please determine the possible values for n, l, and ml? Element n l ml Si Sr Xe O Na
  3. What is the spin quantum number (ms)?
  4. State whether each of the following sets of quantum numbers is permissible for an electron in an atom. (these are in the form n, l, ml, ms) not, state why a. 1,1,0, ½ b. 3,1,-2, - ½ c. 2,1,0, ½ d. 2,0,0,