Glencoe Chemistry Chp. 5
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| amplitude | of a wave is the wave's height from the origin to a crest, or from the origin to a trough
🗑
|
||||
| atomic emission spectrum | of an element is the set of frequencies of the electrospectrum consists of several individual lines of color, not a continuous range of colors as seen in a visible spectrum
🗑
|
||||
| atomic orbital | a three-dimensional region around the nucleus describing the electron's probable location
🗑
|
||||
| aufbau principle | states that each electron occupies the lowest energy orbital available.The aufbau diagram shows the energy of each sublevel
🗑
|
||||
| de Broglie equation | predicts that all moving particles have wave characteristics:
wavelength equals h/ particle mass(m) x moving at velocity (v)
🗑
|
||||
| electromagnetic radiation | is a form of energy that exhibits wavelike behavior as it travels through space
🗑
|
||||
| electromagnetic spectrum | also called EM spectrum encompasses all forms of electromagnetic radiation with the only differences in the types of radiation being their frequencies and wavelengths
🗑
|
||||
| electron configuration | the arrangement of electrons in an atom with the low energy systems more stable than high energy systems.
🗑
|
||||
| electron-dot structure | consist of the elements's symbol represent the elements nucleus and inner level electrons surrounded by dots representing the atom's valence electrons.
🗑
|
||||
| energy sublevel | labeled s,p, d or f according to the shapes of the atom's orbitals and are contained in the principal energy levels
🗑
|
||||
| frequency | represent by v or the Greek letter nu. is the number of waves that pass a given point per second. Hz is the SI unit of frequency=1 wave per second represented as (1/s) or (s with the exponent -1)
🗑
|
||||
| ground state | the lowest allowable energy state of an atom. If an atom gains energy it is in an excited state....hydrogen has atom has many different excited states
🗑
|
||||
| Heisenberg uncertainty principle | states that it is fundamentally impossible to know precisely both velocity and position of a particle at the same time
🗑
|
||||
| Hund's rule | states that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals.
🗑
|
||||
| Pauli exclusion principle | states that a maximum of two electrons may occupy a single atomic orbital, but only if the electrons have opposites spins.
🗑
|
||||
| photoelectric effect | electrons are emitted from a metal's surface when light of a certain frequency shines on the surface (calculator powered by)
🗑
|
||||
| photons | is a particle of electromagnetic radiation with no mass that carries a quantum of energy
🗑
|
||||
| Planck's constant (h) | E= hv.......energy equals planck's constant times velocity
h= 6.626 x 10 to the -34J times s. Joule is the SI unit of energy (J)
🗑
|
||||
| principal energy level | n specifies the atom's major energy levels. As n increases the orbital become larger the electron spends more time farther from the nucleus and the atom's energy level increases.
🗑
|
||||
| principal quantum number (n) | indicates the relative sizes and ergies of atomic orbitals. Range in values 1 to7
🗑
|
||||
| quantum | is the minimum amount of energy that can be gained or lost by atom
🗑
|
||||
| quantum mechanical model of an atom | or wave mechanical model of an atom where the atomic model in which electrons are treated as waves and makes no attempt to describe the electrons party around the nucleus
🗑
|
||||
| valence electrons | electrons in the atom's outermost orbitals with the atom's highest principal energy level.
🗑
|
||||
| wavelength | the Greek letter lambda is the shortest distance between equivalent points on a continue wave. Measured from crest to crest or from trough to trough. In meters, centimes or nanometers ( very small...1nm=1x10 to the -9m)
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Normal Size Small Size show me how
Created by:
gayledains
Popular Chemistry sets