Chem 2 l-t
Terms
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- suspension
- a homogenous mixture in which the different components are in different phases, such as solids in liquids or liquids in gases
- periodic table
- all of the elements are listed in a chart
- metals
- defined as those elements as those elements that are shiney, opaque and good conducters of electricity and heat
- periodic trend
- the properties of elements gradually change
- period
- a horizontal row
- noble gases
- group 18 elements
- lanthanides
- sixth-period inner transition metals
- solution
- all compnenets are in the same phase
- transition metals
- elements of group 3 through 12
- pure
- it consists of only a single element or a single compound
- metalloids
- have both metallic and nonmetallic characteristics
- mixture
- a combination of two or more substances in which each substance retains its properties
- physical change
- a substance changes its phase or soem other physical property but not its chemical composition
- nonmetals
- very poor conductors of electricity and heat, and may also be transparent
- physical properties
- properties that describe the look or feel of a substance, such as color, hardness, densiry, texture and phase