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Atomic Structure - Subatomic Particles
Test Description: Atomic Structure Review - High School Chemistry
Instructions: Answer all questions to get your test result.
1) In the late 1800s, experiments using cathode ray tubes led to the discovery of the
A
neutron
B
positron
C
proton
D
electron
2) Which subatomic particles are located in the nucleus of a carbon atom?
A
protons and electrons
B
protons, only
C
neutrons, only
D
protons and neutrons
3) Which subatomic particle is negatively charged?
A
proton
B
neutron
C
electron
D
positron
4) Which total mass is the smallest?
A
the mass of 2 neutrons
B
the mass of 1 neutron plus the mass of 1 electron
C
the mass of 2 electrons
D
the mass of 1 electron plus the mass of 1 proton
5) Which two particles each have a mass approximately equal to one atomic mass unit?
A
electron and positron
B
proton and neutron
C
electron and neutron
D
proton and electron
6) Which statement is true about a proton and and an electron?
A
They have different masses and the same charges.
B
They have the same masses and different charges
C
They have different masses and different charges.
D
They have the same masses and different charges
7) Which conclusion was a direct result of the gold foil experiment?
A
An atom is composed of at least three types of subatomic particles.
B
An electron has properties of both waves and particles.
C
An electron has a positive charge and is located inside the nucleus.
D
An atom is mostly empty space with a dense, positively charged nucleus.
8) Which statement best describes electrons?
A
They are positive subatomic particles and are found in the nucleus.
B
They are negative subatomic particles and are found surrounding the nucleus.
C
They are negative subatomic particles and are found in the nucleus.
D
They are positive subatomic particles and are found surrounding the nucleus.
9) Which subatomic particle has no charge?
A
neutron
B
beta particle
C
alpha particle
D
electron
10) Compared to the entire atom, the nucleus of the atom is
A
larger and contains most of the atoms mass
B
larger and contains little of the atom's mass
C
smaller and contains most of the atom's mass
D
smaller and contains little of the atom's mass
*select an answer for all questions
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