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Atomic Stucture
Test Description: Ch 5
Instructions: Answer all questions to get your test result.
1) The modern atomic model is based on principles of what?
A
Indivisible particles
B
Planetary orbits
C
wave mechanics
D
Radioactive decay
2) Greek philosophers who studied the smallest particles of matter was called
A
Tindle
B
Tucker
C
Sexton
D
Democritus
3) Who discovered the Nucleus
A
Bohr
B
Thomson
C
Rutherford
D
Dalton
4) The positively charged particle in the nucleus of an atom is
A
electron
B
proton
C
magnetron
D
Nutron
5) The passage of electric current through a gas helped Thomson discover
A
protons
B
quark
C
neutrons
D
electrons
6) The orbits (energy levels) of the atom was discovered by
A
Rutherford
B
Thomson
C
Dalton
D
Bohr
7) Subatomic particles are made of what?
A
Boogers
B
Cotton Candy
C
Cheese
D
Quarks
8) The number of protons in the nucleus of an atom is called the
A
mass number
B
weight number
C
element number
D
atomic number
9) The sum of the protons and neutrons in the nucleus is called the
A
mass number
B
atomic number
C
element number
D
weight number
10) The atomic number is equal to the number of....
A
Electrons
B
Protons
C
Neutrons
11) The center of the atom is called the
A
electron
B
nucleus
C
proton
D
neutron
12) When atoms of the same element have differing number of neutrons they are called
A
isotopes
B
weird
13) The subatomic particle that is neutral
A
Protons
B
Electrons
C
Neutrons
14) The negatively charged particle of the atom is called the
A
Proton
B
Electron
C
Neutron
*select an answer for all questions
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