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