Create an account
Dalton's atomic theory
the first theory to releate chemical changes to events at the atomic level; described the structure and chemical reactivity of matter in terms of atoms
stream of electons produced at the negative electrode of a tube containing a gas at low pressure
atoms of the same element have the same atomic number of different atomic masses due to a different number of neutrons
an arrangement of elements in which the elemtns are separated into groups based on a set of repeating properties
a vertical column of elements in the periodic table; the constiuent elements of a group have similar chemical and physical properties
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together