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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
Particle Theory and the Atom
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
Thought Experiments: an important process in science.
Often scientists can't perform, with equipment, an experiment to test an
idea they have about nature.
Instead, they perform a "thought experiment" where they use logic to
reach a theory regarding some aspect of nature. Two famous scientists
which used thought experiments were Albert Einstein and Galileo
Galilei.
Theory vs. Law
A THEORY is a tested explanation of the results of many
experiments.
A LAW a description of behaviour based on the results of many
experiments.
Laws are generally accepted as true while a theory is only a
good, logical argument to explain the results of many experiments.
John Dalton was an early scientist ( 1766 – 1844) theorized about matter.
Matter is
Dalton's thought experiment involves the fundamental pieces of matter.
Can you continually cut a piece of paper?
Dalton's conclusion that there is some smallest particle that cannot be
divided.
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
The Particle Theory of Matter
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
The Particle Theory of Matter
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Check out the following link for an animation of these principles
http://phet.colorado.edu/simulations/sims.php?sim=States_of_Matter
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
From Particles to Atoms and
beyond....
John Dalton began describing the tiny particles that made
up different pure substances as atoms indivisible
particles.
Like most science, his theory was redefined as science
found ways to divide these "atoms".
It was discovered that atoms are made up of
__________ , ____________, ____________
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
Structure of the Atom
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
Structure of the Atom
• The center of the atom is called the _______________.
• The ____________ contains most of the
_______________ of the atom.
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
Structure of the Atom
• Negatively charged particles are located
_________________________________________and
are called ____________.
• These negatively charged particles have ________
mass.
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
Structure of the Atom
• Positively charged particles are located
_______________________________ and are called
__________________.
• Only ______________ can leave the atom.
_________________________ stay in the nucleus.
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
Subatomic Particles
Summary
subatomic particle location relative mass charge
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Particle Theory and Parts of the Atom with answers.notebook February 04, 2010
Homework
Define the following Electricity Terms in your notes:
electron
proton
neutron
static electricity
conductor
insulator
ground
induction
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