History of Atomic Theory
Category: Other
Updated: 1 Nov 2018
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Created bySpencer Vess
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Chadwick,
Worked with Rutherford to discover
particles with no charge - called neutrons.
Neutrons are also found in the nucleusDemocritus,
Matter is formed of small pieces
that could not be cut into smaller parts
called "atomos" meaning uncuttableThomson,
Atoms are made mostly out of (+) charged material,
like dough in a bun.
The (-) charged electrons are
found inside the (+) doughDalton,
1. Atoms are tiny, invisible particles
2. Atoms of one element are all the same.
3. Atoms of different elements are different.
4. Compounds form by combining atoms.Rutherford,
Atoms have (+) particles in the center,
and are mostly empty space.
(+) particles called protons, the center of atoms called the nucleus.Bohr,
Improved on Rutherford's model -
proposed that electrons move around the nucleus in specific layers,
or shells.
Every atom has a specific number of electron shells.Schrodinger, and Heisenberg
They discovered that electrons don't travel in definitive paths,
however there are regions inside the atom where electrons are likely to be found.
These regions are called electron cloudsDemetrius, this way
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