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