ISOTOPES
Tomas Yap
Isotopes are elements that
have the same number of
protons, but different number
of neutrons. Hence, same
atomic number but different
atomic mass.
A great number of
isotopes is not stable. They
will fall apart during
radioactive decay
processes.
Kinetic Isotope Effect is defined
as a variation in the rate of
chemical reaction because of the
substitution of atoms by isotopes.
This effect occurs when an atom
in one of the reactants is replaced
by one of its isotopes.
The densities, melting points
and boiling points etc., of
each isotope are slightly
different.
IODINE 131
Iodine (chemical
symbol I) is a
nonmetallic solid
element.
If the thyroid absorbs a
large amount of it, the
iodine 131 will hit the
body with a large burst of
radiation. This can cause
thyroid cancer.
It has a radioactive half
life of 8.1 days, and its
radiations are beta
particles and gamma
rays.
Iodine 131 is a radioactive
version of iodine that is
created during nuclear
reactions. It is used to
treat people with
hyperthyroidism.
Like regular iodine,
iodine 131 can be
quickly absorbed into
the human body.
Sources
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