Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
Group
|
A collection of Elements that have similar physical or chemical properties.
|
|
|
Metal
|
An element that has luster, is a good conductor of heat and electricity, is malleable (moldable), and is ductile.
|
|
|
Metalloid
|
An Element that shares some properties with metals and with some non metals.
|
|
|
Nonmetals
|
Elements that are gases or brittle solids at room temperature and do not conduct heat and electricity well.
|
|
|
Period
|
A row of elements whose properties change gradually.
|
|
|
Representative element
|
The elements in Groups 1 and 2 and the elemtents in Groups 13-18.
|
|
|
Transition elements
|
The Elements in Groups 3-12
|
|
|
Alkali Metals
|
Silvery Solids with low densitties and low melting points. (Very Reactive)
|
|
|
Alkaline Earth Metals
|
Metals that are denser and harder and have a higher melting point than the alkali metals.
|
|
|
Halogens
|
Elements in Group 17 tha makes salts
|
|
|
Noble Gases
|
Elements that do not often combine with other elements.
|
|
|
Semiconductor
|
A material that does not conduct electricity as well as a metal, but does condut electricity better than a non metal.
|
|
|
Actinides
|
The name of the Second series of Inner Transition Elements.
|
|
|
Catalyst
|
A Substance that can make something happen faster, but not change itself.
|
|
|
Lanthanides
|
the name of the first series of Inner Transition Elements
|
|
|
Synthetic Elements
|
Elements made in labrotories and in nuclear reactors. (Man Made Elements)
|
