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