38789527
Description
Mind Map by Danna Selene Ibarra Ayala, updated more than 1 year ago
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Created by Danna Selene Ibarra Ayala
about 2 years ago
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Atomic Models
- John Dalton's atomic model
- John Dalton came up with the idea that all matter is made
up of very small things. He called these particles atoms
and formed an atomic theory. In this theory he states
that:
- All matter is made of
atoms. Atoms are
indivisible and
indestructible All
atoms of a given
element are identical
in mass and
properties.
Compounds are made
up of a combination
of two or more
different types of
atoms. A chemical
reaction is a
rearrangement of
atoms.
- All matter is made of
atoms. Atoms are
indivisible and
indestructible All
atoms of a given
element are identical
in mass and
properties.
Compounds are made
up of a combination
of two or more
different types of
atoms. A chemical
reaction is a
rearrangement of
atoms.
- John Dalton came up with the idea that all matter is made
up of very small things. He called these particles atoms
and formed an atomic theory. In this theory he states
that:
- Rutherford's model of the atom
- Rutherford proposed that atoms
have a central nucleus where the
largest percentage of its mass is
found. Furthermore, according to
this theory, this nucleus has a
positive electric charge and is
orbited by particles with the
opposite charge and smaller size
(electrons).
- Rutherford was the first to
suggest that Thomson's
raisin pudding model was
incorrect. There are still
some important ones
problems with this model.
- Rutherford was the first to
suggest that Thomson's
raisin pudding model was
incorrect. There are still
some important ones
problems with this model.
- Rutherford proposed that atoms
have a central nucleus where the
largest percentage of its mass is
found. Furthermore, according to
this theory, this nucleus has a
positive electric charge and is
orbited by particles with the
opposite charge and smaller size
(electrons).
- Bohr's model of the atom
- Bohr proposed for the hydrogen
atom, a nucleus formed by a
positive particle, and revolving
around it, an electron.
- The normally occupied energy level of
the electron is called the ground state.
The electron can move to the less
stable level by absorbing energy. This
higher energy level is called the excited
state. The electron can return to its
original level by releasing the energy.
- The normally occupied energy level of
the electron is called the ground state.
The electron can move to the less
stable level by absorbing energy. This
higher energy level is called the excited
state. The electron can return to its
original level by releasing the energy.
- Bohr proposed for the hydrogen
atom, a nucleus formed by a
positive particle, and revolving
around it, an electron.
- J.J. Thomson's atomic model
- In this model, atoms were known to consist of
negatively charged electrons, however the atomic
nucleus had not been discovered yet. Thomson
knew that atom had an overall neutral charge. He
thought that there must be something to
counterbalance the negative charge of an electron.
- He came up with an idea that negative
particles are floating within a soup of diffuse
positive charge. His model is often called the
plum pudding model, because of his similarity
to a popular English dessert.
- He came up with an idea that negative
particles are floating within a soup of diffuse
positive charge. His model is often called the
plum pudding model, because of his similarity
to a popular English dessert.
- In this model, atoms were known to consist of
negatively charged electrons, however the atomic
nucleus had not been discovered yet. Thomson
knew that atom had an overall neutral charge. He
thought that there must be something to
counterbalance the negative charge of an electron.
- Democritus Atomic model
- Democritus proposed that the
world was made up of very
small particles indivisible,
eternally existent,
homogeneous and
incompressible, whose The only
differences were in shape and
size. never inner workings.
- Democritus proposed that the
world was made up of very
small particles indivisible,
eternally existent,
homogeneous and
incompressible, whose The only
differences were in shape and
size. never inner workings.
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