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Chapter 3 and 6 Vocabulary
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anything that has mass and takes up space
matter
defined as a small particle that makes up most types of matter
atom
the law that states that matter cannot be created or destroyed, only transformed
Law of conservation of matter
invisible, negativley charged particle
electrons
postivley charged central part of an atom
nucleus
positvley charged particles in the nucleus
protons
uncharged particles in atoms
neutrons
matter mad of only one kind of atom
element
the number that tells the number of protons in the nucleus of each atom of that element.
atomic number
atoms of the same element that have different numbers of neutrons
isotopes
the number of protons plus the number of protons plus the number of neutrons an atom contains
mass number
the weighted average mass of the isotopes of an element
atomic mass
things that have a shiny or metallic luster and are good conductors of heat and electricity
metals
elements that are usually dull in appearance. Mostly poor conductors of heat and electricity
nonmetals
elements that have characteristics of metals and nonmetals.
Metalloids
matter that has the same composition and properties throughout
substance
a substanc whose smallest unit is made up of atoms of more than one element bonded together
compound
when two or more substances come together but don't combine or make a new substance
mixture
the atom's electrons travel in an area of space around the nucleus
electron cloud
the different areas for an electron in an atom
energy levels
the symbol for the element surrounded by as many dots as there are electrons in its outer energy level
electron dot diagram
the force that holds two atoms together
chemical bond
an atom that is no longer neutral becasue it has lost or gained an electron
ion
the attraction that holds the ions close together and is a chemical bond
ionic bond
a pure substance containing two or more elements that are chemically bonded
compound
Author
adamah115
ID
135256
Card Set
Chapter 3 and 6 Vocabulary
Description
I thought I already said...
Updated
2012-02-14T20:05:36Z
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