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Chemistry Review
Test Description: Grade 7 periodic table/chemistry review
Instructions: Answer all questions to get your test result.
1) How do you find the number of protons in an atom?
A
guess
B
atomic mass - atomic number
C
atomic number
D
atomic mass
2) How do you find the number of neutrons in an atom?
A
atomic number
B
atomic mass
C
atomic mass - atomic number
D
guess
3) How many electrons fit in the first shell?
A
1
B
2
C
8
D
10
4) How many electrons fit in the second shell?
A
2
B
8
C
10
D
18
5) What is the name of element with symbol Fe?
A
Fenetium
B
Iron
C
Silver
D
magnesium
6) An element in group 1 always has
A
1 proton
B
1 electron shell
C
1 valence electron
D
1 atom
7) NaCl is an example of a
A
mixture
B
element
C
compound
D
gas
8) Sodium has one valence electron and 3 electron shells. To achieve a full shell, it will:
A
receive one electron
B
donate 7 electrons
C
donate one electron
D
receive 7 electrons
9) Helium, Neon, Argon and Krypton are all examples of
A
compounds
B
Halogens
C
noble gases
D
mixtures
10) The element Gold has symbol
A
Au
B
Ag
C
GoLd
D
Go
11) The element potassium has symbol
A
Ko
B
K
C
P
D
Po
12) What is the name of the positively charged subatomic particle
A
electron
B
proton
C
neutron
D
positivitytron
13) What is the name of the negatively charged subatomic particle?
A
proton
B
negativitytron
C
neutron
D
electron
14) Neutrons have what kind of charge?
A
negative
B
neutral
C
positive
D
a big one
15) if an atom has a neutral charge, it means that protons and _______ are equal
A
electrons
B
neutrons
C
valence electrons
D
electron shells
*select an answer for all questions
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