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Chapter 3.1 Science
Science
15
Physics
8th Grade
11/11/2015

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Cards

Term
Democritus
Definition
named the atoms
Term
Lavoisier
Definition
Came up with the law of conservation of matter
Term
Dalton
Definition
Created idea model named the Atomic Theory of matter
Term
Thomson
Definition
Discovered the electron
Term
Rutherford
Definition
Found the nucleus and protons
Term
Chadwick
Definition
Discovered the nuetron
Term
Bohr
Definition
Found evidence on how electrons are arranged in energy fields
Term
electron cloud
Definition
modern accepted theory
Term
matter
Definition
anything that has mass and takes up space
Term
atom
Definition
very small particles that makes up almost all matter and consists of protons neutrons and electrons
Term
Law of Cons. of Matter
Definition
states matter cannot be created nor destroyed, it only changes form
Term
proton
Definition
positively charged particles located in the nucleus of an atom
Term
neutron
Definition
uncharged particles located in the nucleus of an atom
Term
electron
Definition
invisible, negatively charged particles located in the electron cloud of a nucleus
Term
nucleus
Definition
positively charged central part of an atom
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