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Which scientists offered proof that atoms exist?
John Dalton
The electron cloud shows the movement of electrons
the positive charge of the alpha particles and the negative charge of the electrons
electron
an excited state
the electron cloud
the electron's energy changes
discovering the internal structure of the atom
Which of the following models shows how unpredictable electrons are?
John Dalton
The electron cloud shows the movement of electrons
the positive charge of the alpha particles and the negative charge of the electrons
electron
an excited state
the electron cloud
the electron's energy changes
discovering the internal structure of the atom
A electron enters ___________when it has absorbed energy and moved to a higher energy level.
John Dalton
The electron cloud shows the movement of electrons
the positive charge of the alpha particles and the negative charge of the electrons
electron
an excited state
the electron cloud
the electron's energy changes
discovering the internal structure of the atom
Dalton's experiments advanced our understanding of the atom without
John Dalton
The electron cloud shows the movement of electrons
the positive charge of the alpha particles and the negative charge of the electrons
electron
an excited state
the electron cloud
the electron's energy changes
discovering the internal structure of the atom
Which of the following properties did Rutherford use in his experiment?
John Dalton
The electron cloud shows the movement of electrons
the positive charge of the alpha particles and the negative charge of the electrons
electron
an excited state
the electron cloud
the electron's energy changes
discovering the internal structure of the atom
In Rutherford's gold foil experiment the alpha particles pass through which part of the atom?
John Dalton
The electron cloud shows the movement of electrons
the positive charge of the alpha particles and the negative charge of the electrons
electron
an excited state
the electron cloud
the electron's energy changes
discovering the internal structure of the atom
Bohr believed that light is emitted by a electron when
John Dalton
The electron cloud shows the movement of electrons
the positive charge of the alpha particles and the negative charge of the electrons
electron
an excited state
the electron cloud
the electron's energy changes
discovering the internal structure of the atom
British physicist J.J. Thomson was the first to identify the
John Dalton
The electron cloud shows the movement of electrons
the positive charge of the alpha particles and the negative charge of the electrons
electron
an excited state
the electron cloud
the electron's energy changes
discovering the internal structure of the atom
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