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Physical Science Review 4.1
Test Description: Introduction to Atoms
Instructions: Answer all questions to get your test result.
1) Which of the following is not a part of Dalton's atomic theory?
A
Atoms of the same element have different masses
B
All elements are composed of atoms
C
Atoms of an element cannot change into atoms of a different element
D
Atoms of the same element are exactly alike
2) What subatomic particles did Thomson discover?
A
electrons
B
protons, electrons, & neutrons
C
neutrons
D
protons
3) Atomic number is the number of?
A
morons
B
electrons
C
protons
D
neutrons
4) Rutherford did not discover that
A
Atoms are mostly empty space
B
The nucleus is very dense
C
Electrons move in a cloud-like region around the nucleus
D
Positive charge is in the nucleus of an atom
5) What subatomic particle did Chadwick discover?
A
Slipons
B
Neutrons
C
Electrons
D
Protons
6) Electrons have only specific amounts of energy according to
A
Thomson
B
Chadwick
C
Bohr
D
Rutherford
7) Electrons at a ____________ energy level will be found further from the ____________
A
higher; atom
B
lower; atom
C
lower; nucleus
D
higher; nucleus
8) What subatomic particles occur in equal amounts?
A
electrons & neutrons
B
protons & neutrons
C
protons & electrons
D
protons, electrons, & neutrons
9) 1 amu is equal to the mass of 1
A
proton or electron
B
electron or neutron
C
proton or neutron
D
proton, electron, or neutron
10) Isotopes have the same number of ___________ but different number of ___________
A
electrons; protons
B
protons; neutrons
C
neutrons; protons
D
protons; electrons
*select an answer for all questions
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