Electrons and Light
Orbitals
Energy Levels
Identify the Element
Independent and Dependent Variables
100
A packet of light emitted when an electron falls from a higher energy level to the ground state.
What is a photon?
100
The number of electrons in the 1s orbital.
What is 2 electrons?
100
How many total orbitals in the 2nd energy level?
What are 4 orbitals?
100
Given the following electron configuration 1s2 2s1 identify the element.
What is Lithium?
100
The variable that is changed by the scientist in an experiment.
What is the independent variable?
200
The color with the highest energy and shortest wavelength.
What is violet?
200
The number of orbitals in a d sub level.
What is 5?
200
The principle that states that electrons will half fill all orbitals before pairing in a sub-level.
What is hund's rule?
200
Given the following electron configuration 1s2 2s2 2p6 3s2 3p1 identify the element.
What is Aluminum?
200
A student wants to test how Mountain Dew affects his test performance. He drinks a different amount of Mountain Dew before three chemistry tests and records his scores in a chart. What are his IV and DV?
IV = Mountain Dew amount DV = Test Score
300
A test used to identify the element composition of an unknown solution.
What is a flame test?
300
The number of electrons in the f sub-level.
What is 14?
300
Calculate the total number of electrons in the 3rd energy level.
What is 18 electrons?
300
Given the following electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d3 identify the element.
What is Vanadium?
300
A researcher is looking at the elemental composition of stars in the galaxy. She looks at 100 different stars and measures the atomic spectra for each star. Identify the IV and DV.
IV - Different stars DV - atomic spectra
400
If a light emits a red color, what can you predict about its energy and wavelength?
Red has a low energy and long wavelength.
400
Using aufbau's principle predict the sub-level that will be filled after 3p.
What is 4s?
400
Predict the orbital diagram for Mg.
What is 1s_!!_2s_!!__2p_!!_ _!!_ _!!_ 3s_!!_
400
Given the following electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 identify the element.
What is Krypton?
400
A scientist is interested in comparing the reactivity of elements. In previous studies it has been shown that the amount of gas production is related the reactivity of an element. He reacts 5 different chemicals with water and measures the amount of gas produced in each sample.
IV = DIfferent elements DV = amount of gas produced
500
Identify the elements in the unknown given the following spectra: Lithium: 671, 610, 413, 427, 460 Beryllium: 467, 431, 527, 441, 483 Carbon: 427, 465, 515, 658, 589 Fluorine: 686, 690, 624, 635, 684, 641 Unknown: 413, 427, 460, 465, 515, 589, 610, 658, 671
What is Carbon and Lithium?
500
Identify the principal that states that only 2 electrons can occupy an orbital and that the electrons must have opposite spins.
What is pauli's exclusion principle?
500
Predict the orbital diagram for N.
What is 1s_!!_ 2s_!!_ 2p_!_ _!_ _!_?
500
Given the following electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d1 identify the element.
What is Yttrium
500
Write a hypothesis that answers the question "Which paint is the most toxic?" given the following Independent and Dependent variables. You know that high levels of lead are toxic to children. IV = 5 paint samples DV = concentration of lead
If you test 5 paint samples and measure the concentration of lead, then you will be able to determine which paint is the most toxic because it will have the highest concentration of lead.
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