Download Words for Matter Chapter 2

characteristics that can be measured or detected by the senses – For example color, size, odor, and density
describes how matter changes when it reacts with other matter – For example, does it burn? Will it rust? Will it react
with acid? Will it rot?
is a material that always has the same makeup and properties
: smallest particle of an element that has the same properties of that element
: center of the atom
a positively charged particle found inside the nucleus
: a particle with no charge found inside the nucleus
: a negatively charged particle found outside the nucleus
is a substance made up of one kind of atom and cannot be broken down by simple means into any other substance * Periodic Table
of Elements* For example, iron in a big block, wire, tiny filings, liquid or solid is still iron and has the properties of iron.
is a substance made up of two or more elements combined chemically.
is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound For
example, water H20 in a big block, liquid or solid is still water and has the properties of water.
A combination of two or more different kinds of matter that can be separated by physical means. Examples – trail mix, coffee, ice tea
A mixture in which the different particles are spread evenly throughout
The material present in the smaller amount in a solution(usually gets dissolved)
The material present in the larger amount in a solution(usually does the dissolving like water)
is a solution of two or more metals with properties of its own.
is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent
a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure
(and similar chemical properties) appear in vertical columns
One or two letters that stand for the name of an element
A GROUP OF SYMBOLS THAT SHOWS THE ELEMENTS IN A COMPOUND
: the number of protons in the atom
: the number of protons and neutrons in the atom