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Atoms
Test Description: Atoms
Instructions: Answer all questions to get your test result.
1) What two parts are found in the nucleus?
A
neutrons and electrons
B
atomic mass
C
electrons and protons
D
protons and neutrons
2) What part of an atom has a positive charge?
A
proton
B
neutron
C
electron cloud
D
electron
3) If an atom has an atomic number of 17 and an atomic mass of 35, how many protons does it have?
A
2
B
35
C
18
D
17
4) An element has 5 protons and 6 neutrons. What is its atomic number?
A
11
B
1
C
5
D
6
5) What is the charge of an electron?
A
nucleus
B
positive
C
negative
D
neutral
6) Lithium has an atomic number of 3 and an atomic mass of 7. How many neutrons does it have?
A
10
B
7
C
3
D
4
7) What is the chemical symbol for neon?
A
N
B
Ne
C
Nn
D
No
8) The number of protons is equal to the ...
A
number of neutrons
B
atomic mass
C
atomic mass plus atomic number
D
number of electrons
9) The center of the atom is called ..
A
nucleus
B
electron cloud
C
neutron
D
shells
10) What part of the atom moves around the outside of the nucleus?
A
neutron
B
electron
C
proton
*select an answer for all questions
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