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Atoms And Molecules
Test Description: Structure of Matter - S8P1.a.
Instructions: Answer all questions to get your test result.
1) The spacing of atoms in a liquid are ____.
A
tightly bound.
B
spread out and slide past each other.
2) The building block of all matter is ________.
A
oxygen
B
an element
C
water
D
an atom
3) Which statement is true about a molecule?
A
The chemical and physical properties of the molecule are different from the component elements.
B
A molecule is identical to the component elements.
C
A molecule retains the chemical properties of the component elements.
D
A molecule retains the physical properties of the component elements.
4) Which is the BEST definition of a molecule?
A
Anything that mass and occupes space.
B
The smallest unit of a substance that exhibits all of the properties characteristic of that substance.
C
The smallest particle that has the properties of an element.
D
A substance that cannot be broken down into simpler substances.
5) What is the difference between 4 P and P4?
A
P4 represents four atoms chemically bonded together and 4 P does not.
B
There is no difference, they both represent the same thing
C
4 P represents phosphorus atoms that are bonded together chemically and P4 represents one molecule.
D
4 P represents four molecules and P4 represents four atoms
6) Elements are composed of
A
many different compounds.
B
the same type of atom.
C
many type of atoms.
D
the same type of compound.
7) The Statue of Liberty is composed of copper. The smallest particle of any amount of copper is
A
a compound.
B
a molecule.
C
an atom.
D
an element.
8) Molecules are different from atoms because they
A
contain chemical bonds.
B
have less energy
C
have unique properties.
D
are much smaller
9) All matter is made of small particles that are called
A
atoms.
B
elements.
C
cells.
D
molecules.
10) Which statement is the BEST definition of an atom?
A
The smallest unit of a substance that exhibits all of the properties characteristic of that substance.
B
The smallest particle that has the properties of an element.
C
Anything that has mass and occupies space.
D
A substance that cannot be broken down into simpler substances.
11) What is an element?
A
sugar
B
water
C
sodium
D
alcohol
12) A(n) _____________ is described as a nucleus of protons and neutrons surrounded by an electron cloud.
A
element
B
atom
C
compound
D
molecule
13) An atom is described as a nucleus of protons and neutrons surrounded by a(n)
A
electron cloud.
B
neutron cloud.
C
protons.
D
negative force.
*select an answer for all questions
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