Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chem Mod 7

Apologia Chemistry Module 7

QuestionAnswer
Atomic number How many protons (and therefore electrons) are in an atom
Isotopes Atoms with the same number of protons but different numbers of neutrons
Mass number The total number of protons and neutrons in an atom (e.g. ¹²C)
"Plum pudding" model of an atom Positively charged "pudding" with electron "plums" scattered throughout
Planetary (Rutherford's) model of an atom Protons in the center (nucleus) with electrons orbiting about
Physical constant A measurable quantity in nature that does not change
Hertz (Hz) 1/second
Particle/Wave Duality Theory The theory that sometimes light sometimes behaves as a particle and sometimes behaves as a wave
Wavelength The distance between the crests (or troughs) of a wave
Amplitude A measure of the height of the crests or the depths of the troughs on a wave
Frequency formula f = c/λ where f = frequency (Hz) c = the speed of light (m/s) λ = wavelength (m)
Speed of light 3.0 x 10⁸ m/s
Nano 10⁻⁹
As a light wave's frequency increases, its energy ... increases
Relationship between energy and frequency E = h⋅f where E = energy (Joules) f = frequency h = 6.63 x 10⁻³⁴ J/Hz (Planck's constant)
Quantum mechanical model Electrons orbit the nucleus in clouds (orbitals). Each orbital can hold two electrons
s orbital - spherical - 1s, 2s, 3s, etc.
p orbital - dumb-bell shaped - 2p, 3p, etc. - each energy level has 3 different p orbitals (x, y, z)
d orbital - complex shape - 3d, 4d, etc. - 5 different d orbitals for each energy level
In the periodic table, the row tells you ... ... what energy level the last electron is in
In the periodic table, the first two columns have their last electron ... ... in an s orbital (including He)
In the periodic table, the middle 10 columns have their last electron ... ... in a d orbital (energy level is ONE LESS than the row)
In the periodic table, the last 6 columns have their last electron ... ... in a p orbital
Created by: thomas.macri