| Name _______________ |
Date
_____________
|
Elements and Compounds Vocabulary List & Definitions
|
density
|
the
ratio of mass to volume. |
| electron
|
a negatively charged particle, considered
a fundamental unit of matter, that exists independently or outside
the nucleus of an atom. |
| element |
any
of the substances, now numbering 107, that cannot be chemically
separated into simpler substances. |
| mixture
|
the product of mixing two or more items or substances together.
|
| molecule
|
a
single atom or several atoms bound together electomagnetically,
forming the smallest particle that possesses all the characteristic
physical and chemical properties of an element or compound. |
| neutron
|
an
elementary particle having no charge, spin of one-half, and mass
approximately equal to a proton, present in the nucleus of all atoms
except the common isotope of hydrogen. |
| symbol
|
something that represents something else, esp. a material sign or
object that stands for a complex or abstract concept. |
| volume
|
the
amount of space occupied by a three-dimensional object. |
| compound
|
a
substance formed by the union of two or more chemical elements in
fixed proportions, with properties different from those of its constituents. |
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