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Atoms, Elements And Molecules 3
Test Description: Practice test questions covering matter, atoms, mixtures, compounds, elements and the periodic table.
Instructions: Answer all questions to get your test result.
1) Which of the following is a compound?
A
Au
B
Pb
C
CO2
D
N2
2) Atoms chemically bonded.
A
period
B
element
C
mixture
D
compound
3) All of one atom.
A
element
B
compound
C
period
D
mixture
4) Electrons have a ________ charge.
A
high
B
positive
C
negative
D
neutral
5) CH4 is the chemical formula for methane. Methane consists of which of the following elements?
A
Californium and Helium
B
Cadmium and Helium
C
Calcium and Hydrogen
D
Carbon and Hydrogen
6) Every atom of the same element has the same atomic number.
A
True
B
False
7) What is the name of the element on the periodic table with the symbol Na?
A
Gold
B
Nalthium
C
Nabium
D
Sodium
8) Which of the following is the chemical symbol for Mercury?
A
M
B
Au
C
Me
D
Hg
9) What element has 14 protons?
A
Tin
B
Silicon
C
Nitrogen
D
Liamanlium
10) What is the atomic mass of Aluminum (Al)?
A
12
B
26.98
C
13
D
28.09
*select an answer for all questions
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