·
the type of radiation consisting of
fast-moving electrons is called:
a) x-ray
b) alpha
c) beta
d) none
of the above
·
which of the following radioactive decay
processes does not reduce the atomic number of a nuclide
a) positrn
b) gamma
c) alpha
d) beta
·
what product of fission is necessary in
order to establish a chain reaction
a. kryton
b. berkelium
c. neutron
d. none
of the above
·
which of the following is the purpose of
a geiger counter?
a) counting
scintillation
b) counting
period
c) isotope
separation
d) none
of the above
·
the half-life of an isotope is the time
required for half the nuclei in a sample to
a) to
decay to half
b) to
relief gamma ray
c) undergo transition
d) None
of the above
·
an atom has no net electrical charge
because
a) it
has been neutralize
b) it
same number of protons and neutron
c) same
number of electrons and protons
d) none
of the above
·
which type of matter has a definite
composition throughout
a) solid
b) liquid
c) gas
d) plasma
·
based on its position relative to the
band of stability, 80zn will undergo
a)alpha decay
b) beta
c) gamma
d) positron
·
126 52 the has how many neutron?
a) 78
a) b)52
b) c)126
c) none
of the above
·
the nuclide of oxygen-18 contains
____________________ neutrons.
a) 18
a) 10
b) 8
c) 6
·
matter that has a uniform and definite
composition is called
a) solid
b) liquid
c) gas
d) none
of the above
·
only alpha decay and beta decay will
result in the change of a nuclear identity.
a) True
b) false
·
how many kinds of matter does a pure
substance contain
a) one
b) two
c) three
d) four
·
matter that has a uniform
characteristics throughout is called
a) compound
b) mixtures
c) homogenous
d) hetrogenous
·
term that describes matter that has a
uniform and definite composition
a) compound
b) mixtures
c) homogenous
d) hetrogenous
·
how many kinds of matter does a pure
substance contain
compound
mixtures
homogenous
hetrogenous
·
all samples of a substance have
different physical properties
a) compound
b) mixtures
c) homogenous
d) hetrogenous
·
matter that has a uniform
characteristics throughout is called
a) compound
b) mixtures
c) homogenous
d) hetrogenous
·
which type of matter has a definite
composition throughout
a) solid
b) liquid
c) gas
d) plasma
·
the type of change that results in a
change in identity
a) chemical
change
b) physical
change
c) nuclear
change
d) none
of the above
·
a change to a material that does not
change its composition
is called?
a) chemical
change
b) physical
change
c) nuclear
change
d) gamma
decay
·
what substance is a yellow solid and
melts at 115 degrees Celsius
a) iron
b) sodium
c) sodium
chloride
d) platinum
·
circle the letter of the term that is
not a physical property
a) color
b) mass
c) volume
d) shape
·
matter that takes both the shape and
volume of its container is
a) gas
b) solid
c) liquid
d) plasma
·
measure of the space occupied by an
object
a. area
b. volume
c. shape
d. mass
·
what is the melting point of bromine
a)-7.5c
b)12c
c)15c
d) none of the above
·
the term gas is limited to those
substances that exist in the gaseous state at
a) 25
celcius
b) 100celcius
c) 315kelvin
d) all
of the above
·
which of the following is a
heterogeneous mixture
a) sand
in water
b) peak
milk
c) cocacola
fanta
d) soap
·
which state of matter expands when
heated and is easy to compress
a) gas
b) liqid
c) plasma
d) solid
·
which of the following is a physical
property of a substance in the liquid state?
a) compressibility
b) heterogeneity
c) incompressibility
d) definite
shape
·
which of the following is a
heterogeneous mixture
a) soup
b) yorghurt
c) c)fanta
d) none
of the above
·
since gases and liquids have particles
that are further apart, they can both be easily compressed.
true or false
·
the particles in a solid are constantly
moving. what kind of motion is this?
a)translational
b) oscillatory
c) simple harmonics
d) none of the above
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