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Unit 3: Matter Page 12
Textbook Reading
If you’ve been following the molecules. A molecule can be
curriculum up to this point (Units 1 made of anywhere from two atoms
& 2) and are looking forward to to millions of atoms. Together
more great energy stuff, stay these atoms make absolutely
tuned. Electromagnetic energy is everything.
coming soon. However, before we
get there, we need to take a bit of All matter is made of atoms.
a side road. Shoes, air, watermelons, milk,
wombats, you, everything is made
Energy is things moving over a of atoms. Hundreds, and billions,
distance against a force. When it and zillions of atoms make up
comes to electromagnetic energy everything. When you fly your kite,
those moving things are electrons. it’s atoms moving against the kite
"What’s an electron?" you ask? that keep it in the air. When you
Well, that’s what this lesson is all float in a boat, it’s atoms under
about. We need to wander into the your boat holding it up.
world of quantum physics for a bit
and take a look at the teeny and What’s Inside an Atom?
the mysterious world of atoms.
Atoms are
What is an Atom? made up of
bunches of
My definition of an atom is; the particles, but
smallest part of stable matter. we will concern
There are things smaller than an ourselves with
atom, but they are unstable. (Not only three of
like my Aunt Edna is unstable but those particles for now. Atoms are
rather like they can’t be around for made of protons, neutrons, and
long on their own.) Atoms are very electrons. The protons and the
stable and can be around for long, neutrons make up the nucleus (the
long, long periods of time. Atoms center) of the atom.
rarely hang out on their own
though. They are outgoing little The electron wanders around
fellows, on the whole, and love to outside the nucleus and, as we’ll
get together in groups. These see next lesson, is a wacky little
groups of atoms are called fellow. Protons and neutrons are
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