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Atomic Structure
Test Description: Review questions
Instructions: Answer all questions to get your test result.
1) The smallest part of an element.
A
atom
B
neutron
C
electron
D
proton
2) Gives the nucleus its positive charge
A
proton
B
photon
C
neutron
D
electron
3) Gives the nucleus more mass, but doesn't change its charge
A
photon
B
neutron
C
proton
D
electron
4) Most of the mass of an atom can be found in the
A
electron cloud
B
atomic zone
C
electron shell
D
nucleus
5) The lightest subatomic particle
A
neutron
B
electron
C
proton
D
proton and neutron
6) Which two subatomic particles are equal when an atom is neutral?
A
protons, neutrons
B
protons, electrons
C
protons, neutrons, electrons
D
neutrons, electrons
7) The two subatomic particles that are about the same size:
A
proton, neutron
B
proton, electron
C
All atoms are very different
D
neutron, electron
8) The subatomic particle that decides which element you have:
A
photon
B
neutron
C
electron
D
proton
9) Without electrons atoms would carry
A
an alternating charge
B
a negative charge
C
no charge at all
D
a positive charge
10) Electrons are found in the
A
atomic zone
B
nucleus
C
electron shells or cloud outside of the nucleus
D
zone of electrons
11) The mass of an electron is
A
exactly equal to the difference of the proton and neutron's mass
B
about the same as the proton's mass
C
about 100 time less than a proton's mass
D
much less than the mass of a proton or a neutron
12) Charge of a single electron
A
-2
B
-3
C
0
D
-1
13) The maximum number of electrons in the first shell:
A
6
B
4
C
2
D
8
14) Element with 3 protons and 3 electrons:
A
lithium
B
carbon
C
helium
D
hydrogen
15) The number of protons determines what ___________________ a particular atom belongs to.
A
atom
B
element
C
classification
D
nucleus
*select an answer for all questions
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