Create an account
Group 1, 1 electron in outer level, very reactive, soft, silver, shiny, low density; Lithium, Sodium, Potassium, Rubidium, Cesium, Francium
one-half of the distance between the center of identical atoms that are not bonded together.
the tendency of an atom or radical to attract electrons in the formation of an ionic bond
group 17; contains nonmetals; 7 electrons in its outermost energy level; very reactive; poor conductors of electric current; never in its uncombined form in nature; combine with most metals to form salts
Inner Transition Metal
a type of group B element that is contained in the P-block of the periodic table and is characterized by a filled outermost S orbital, and filled or partially filled 4F and 5F orbital
one of the elements of group 18 of the periodic table(helium, neon,argon, krypton, xenon, and radon); noble gases are unreactive
elements that are usually dull in appearance, poor conductors of heat and electricity, gases at room temperature
the principle that chemical properties of the elements are periodic functions of their atomic numbers
a group in the periodic table which includes metals, metalloids, and nonmetals
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