Atoms And Molecules Question Preview (ID: 24135)
Structure Of Matter - S8P1.a.
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Which statement is the BEST definition of an atom?
a) Anything that has mass and occupies space.
b) The smallest particle that has the properties of an element.
c) A substance that cannot be broken down into simpler substances.
d) The smallest unit of a substance that exhibits all of the properties characteristic of that substance.
Molecules are different from atoms because they
a) have less energy
b) are much smaller
c) have unique properties.
d) contain chemical bonds.
All matter is made of small particles that are called
a) atoms.
b) cells.
c) elements.
d) molecules.
Elements are composed of
a) many type of atoms.
b) the same type of atom.
c) many different compounds.
d) the same type of compound.
The Statue of Liberty is composed of copper. The smallest particle of any amount of copper is
a) an atom.
b) an element.
c) a compound.
d) a molecule.
What is the difference between 4 P and P4?
a) There is no difference, they both represent the same thing
b) 4 P represents four molecules and P4 represents four atoms
c) P4 represents four atoms chemically bonded together and 4 P does not.
d) 4 P represents phosphorus atoms that are bonded together chemically and P4 represents one molecule.
Which is the BEST definition of a molecule?
a) Anything that mass and occupes space.
b) The smallest particle that has the properties of an element.
c) A substance that cannot be broken down into simpler substances.
d) The smallest unit of a substance that exhibits all of the properties characteristic of that substance.
The spacing of atoms in a liquid are ____.
a) spread out and slide past each other.
b) tightly bound.
c)
d)
The building block of all matter is ________.
a) water
b) oxygen
c) an atom
d) an element
Which statement is true about a molecule?
a) A molecule is identical to the component elements.
b) A molecule retains the physical properties of the component elements.
c) A molecule retains the chemical properties of the component elements.
d) The chemical and physical properties of the molecule are different from the component elements.
What is an element?
a) alcohol
b) sodium
c) sugar
d) water
A(n) _____________ is described as a nucleus of protons and neutrons surrounded by an electron cloud.
a) atom
b) compound
c) element
d) molecule
An atom is described as a nucleus of protons and neutrons surrounded by a(n)
a) protons.
b) neutron cloud.
c) electron cloud.
d) negative force.
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