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Atoms, Elements, Molecules, Compounds
Test Description: Basic vocabulary of atoms
Instructions: Answer all questions to get your test result.
1) What is anything that has mass and takes up space?
A
energy
B
nucleus
C
protons
D
matter
2) What is the smallest unit of matter?
A
molecule
B
atom
C
element
D
compound
3) What is a pure substance made up of only one type of atom?
A
element
B
atom
C
molecule
D
compound
4) What particle has a positive charge?
A
neutron
B
proton
C
nucleus
D
electron
5) What particle has a negative charge?
A
nucleus
B
electron
C
proton
D
neutron
6) What particle has a neutral charge?
A
proton
B
electron
C
neutron
D
nucleus
7) Where are the protons and neutrons located?
A
electron cloud
B
nucleus
C
center
D
middle
8) Where are the electrons located?
A
electron cloud
B
center
C
neutrons
D
nucleus
9) How many elements are on the periodic table?
A
218
B
118
C
294
D
108
10) What does the atomic number identify?
A
number of electrons
B
number of protons
C
number of neutrons
D
protons plus neutrons
11) What does the atomic mass identify?
A
number of protons
B
number of neutrons
C
protons plus neutrons
D
number of electrons
12) What are two or more atoms bonded together? (Can be same or different element)
A
compound
B
element
C
atom
D
molecule
13) What are two or more different types of elements bonded together?
A
molecule
B
compound
C
element
D
atom
14) What is the large number in front of a formula that identifies the number of molecules?
A
subscript
B
the big number
C
coefficient
D
atoms
15) What is the small number which identifies how many atoms of each element are in the formula?
A
atoms
B
coefficient
C
element
D
subscript
16) All compounds are molecules but all molecules are not compounds.
A
False
B
True
17) Elements can be molecules.
A
True
B
False
*select an answer for all questions
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