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Atomic Structure
Test Description: Structure of the atom and atomic models
Instructions: Answer all questions to get your test result.
1) What is the greek word that means unable to be divided
A
uncutto
B
nucleos
C
electronia
D
atomos
2) Which image shows what Democritus thought the atom was like?
A
3
B
None
C
1
D
2
3) Which is not part of Dalton's theory?
A
Atoms contain electrons, protons, and neutrons
B
Atoms combine to form compounds and molecules
C
Elements are made of identical atoms
D
Everything is made of atoms
4) The nucleus of an atom
A
is positive.
B
is concentrated in the center of the atom.
C
contains neutrons and protons
D
all of the above
5) Bohr's Model of the atom is comparable to
A
fan blades
B
a beach ball on ocean waves
C
all of the above
D
planets orbiting the sun
6) The modern model of the atom says
A
the electrons move in circles around the nucleus
B
we can only predict how likely it is an electron will be in a certain place.
C
Bohr was completely right.
D
atoms are solid spheres
7) The positive subatomic particle is the
A
all are positive
B
electron
C
proton
D
neutron
8) The negative subatomic particle is the
A
none of the above
B
electron
C
neutron
D
proton
9) The lightest subatomic particle is the
A
electron
B
neutron
C
proton
D
all have the same mass
10) Protons and neutrons
A
have the same charge
B
have similar masses
C
all of the above
D
move around the nucleus
*select an answer for all questions
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