Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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
remaining cards
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:
restart all cards

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

Models of the Atom

Rutherford's planetary model could not explain the ?? of elements. chemical properties
Bohr proposed that electrons move only in specific ?? around the nucleus. circular paths
Rutherford's model of the atom was known as the ??. planetary model
The quantum mechanical model determines the allowed ? an atom can have. energies
The quantum mechanical model determine how likely it is to be found in ?? around the nucleus. various locations
Each sublevel(suorbital)corresponds to an ?? describing where the electron is likely to be found. orbital shape
The wavelength and frequency of light are ?? to each other. inversely proportional
When an atom absorbs energy, electrons move into ???. higher energy levels.
When electrons drop back to a lower energy level, they ??. lose energy
When electrons lose energy as they move to a lower energy level, they produce ? of different colors. light
The light emitted by electrons as they transition to a lower energy level has a frequency directly proportional to the ?? of the electron. energy change
Classical mechanics adequately describe the motions of bodies much larger than ?. atoms
quantum mechanics describe the motion of subatomic particles and atoms as ?. waves
The fixed energies an electron can have are called ??. energy levels
To move from one energy level to another, the electron must ? or ? just the right amount of energy. lose or gain
In general, the higher an electron is on the energy "ladder", the ? it is from the nucleus. farther
A ? of energy is the amount of energy required to move an electron from one energy level to another energy level. quantum
The higher the energy leveloccupied by an electron, the ?? it takes to move from that energy level to the next higher level less
The modern description of the electrons in atoms, the ???, comes from the mathematical solutions to Schrodinger equation. quantum mechanical model
The probability of finding an electron within a certain volume of space around the nucleus is represented y a ??. fuzzy cloud
Attempts to show probabilities as a fuzzy cloud are usually limited to the volume in which the electron is found ?? of the time 90 percent
An ?? is often thought of as a region of space in which there is a high probability of finding an electron. atomic orbital
The energy levels of electrons in quantum mechanical model are labeled by ???. principal quantum number
For each principal level, there may be several orbitals with ?? and at different ??. different orbitals energy levels
S orbitals are ? shaped. spherical
P orbitals are ? shaped. dumbbell
The three p suborbitals have different ? in space. orientations
The first energy level can hold a maximum of ? electrons. 2
The second energy level can hold a maximum of ? electrons. 8
The third energy level can hold a maximum of ? electrons. 18
The fourth energy level can hold a maximum of ? electrons. 32
The s orbital has how many suborbitals? none
The p orbitals has how many suborbitals? 3
The d ortials has how many suborbitals. 5
The f orbital has how many suborbitals? 7
?? is the way in which electrons are arranged in various orbitals around the nuclei of atoms. electron configuration
According to the ??, electrons occupy the orbitals of lowest energy first. aufbau principle
According to the ???. an atomic orbital may describe at most ? electrons. 2
According to Hund's rule, one electron enter each orbital until each orbital has electrons with the ???. same spin direction
The ? of a wave is the wave's height. amplitude
The ? represents the distance between crests. wavelength
The ? of a wave is the number of wave cycles to pass a given point per unit of time. frequecy
The SI unit for cycles per second is called a ?. hertz
Light consists of ??. electromagnetic waves
All electromagnetic waves move a the ? speed in a vacuum. same
Sunlight consists of light with a continuous range of ? and ?. wavelength, frequency
Band of colored light produced when whit light passes through a prism. spectrum
The frequencies of light emitted by an element separate into discrete lines to give the ??? of the element. atomic emission spectrum
When an electron has its ?? energy, the atom is in its ground state. lowest possible
Light can also be considered to be composed of "packets" of energy know as ?. photons
The ??? states that is impossible to know exactly both the velocity and the position a subatomic particle at the same time. Heisenberg uncertainty principle