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Atoms
Test Description: Structure of an Atom
Instructions: Answer all questions to get your test result.
1) What is an atom?
A
electrons
B
supplies most of the energy
C
smallest particle of a chemical element
D
protons
2) What are the 3 subatomic particles of an atom?
A
directs cell's activities
B
proton, neutron, electron
C
electricity, neutrons, protons
D
nucleolus, ribosomes, neutron
3) The nucleus of an atom is made of _________.
A
protons and electrons
B
neutrons and proteins
C
electrons and proteins
D
neutrons and protons
4) Protons have a ____________ electrical charge
A
neutral
B
negative
C
no charge
D
positive
5) Electrons have a _______ electrical charge.
A
negative
B
neutral
C
positive
D
no charge
6) Neutrons have a ________electrical charge.
A
neutral
B
negative
C
two charges
D
positive
7) Two atoms of the same element are the _________.
A
same
B
proteins
C
happy
D
different
8) Which of the following is the smallest?
A
atom
B
neutron
C
proton
D
electron
9) Almost the entire mass of an atom is located in the ____.
A
nucleus
B
neutron
C
proton
D
electron
10) You can see an atom with ________.
A
your eyes
B
a magnifier
C
a telescope
D
a microscope
*select an answer for all questions
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