isotope,
one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table
and nearly identical chemical behaviour but with different atomic masses and physical properties. Every chemical element has one or more isotopes.
What are 3 examples of isotopes?
The number of nucleons (both protons and neutrons) in the nucleus is the atom’s mass number, and each isotope of a given element has a different mass number. For example,
carbon-12, carbon-13, and carbon-14
are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively.
What is an isotope easy definition?
isotope,
one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table
and nearly identical chemical behaviour but with different atomic masses and physical properties. Every chemical element has one or more isotopes.
What does the isotope tell you?
Isotopes are members of a family of an element that
all have the same number of protons but different numbers of neutrons
. The number of protons in a nucleus determines the element’s atomic number on the Periodic Table.
What is an isotope GCSE?
Atoms of the same element must have the same number of protons , but they can have different numbers of neutrons
. Atoms of the same element with different numbers of neutrons are called isotopes .
What is an isotope in your own words?
An isotope of a chemical element is
an atom that has a different number of neutrons
(that is, a greater or lesser atomic mass) than the standard for that element. The atomic number is the number of protons in an atom’s nucleus.
What are isotopes give an example?
Isotopes:
the atoms of the same element which have the same atomic number Z but differ in their mass number A are
called isotopes. Example: Hydrogen has three isotopes ( 1 1 H , X 1 1 X 2 1 2 1 H , X 1 3 X 2 1 2 3 H ) , Protium, Deuterium, Tritium.
What are 2 examples of isotopes?
Isotope Examples
Carbon 12 and Carbon 14
are both isotopes of carbon, one with 6 neutrons and one with 8 neutrons (both with 6 protons). Carbon-12 is a stable isotope, while carbon-14 is a radioactive isotope (radioisotope). Uranium-235 and uranium-238 occur naturally in the Earth’s crust. Both have long half-lives.
What are 3 uses of radioactive isotopes?
Different chemical forms are used for brain, bone, liver, spleen and kidney imaging and also for blood flow studies. Used to locate leaks in industrial pipe lines…and in oil well studies. Used in nuclear medicine for nuclear cardiology and tumor detection. Used
to study bone formation and metabolism
.
How do you identify isotopes?
Isotopes are identified
by their mass
, which is the total number of protons and neutrons. There are two ways that isotopes are generally written. They both use the mass of the atom where mass = (number of protons) + (number of neutrons).
Why do isotopes occur?
Isotopes can either form spontaneously (naturally)
through radioactive decay of a nucleus
(i.e., emission of energy in the form of alpha particles, beta particles, neutrons, and photons) or artificially by bombarding a stable nucleus with charged particles via accelerators or neutrons in a nuclear reactors.
What is the importance of isotopes?
Isotopes of an element all have the same chemical behavior, but the
unstable isotopes undergo spontaneous decay during
which they emit radiation and achieve a stable state. This property of radioisotopes is useful in food preservation, archaeological dating of artifacts and medical diagnosis and treatment.
How do you create an isotope?
This can be done by
firing high-speed particles into the nucleus of an atom
. When struck, the nucleus may absorb the particle or become unstable and emit a particle. In either case, the number of particles in the nucleus would be altered, creating an isotope.
What is the difference between isotopes and atoms?
ISOTOPES AND ATOMIC MASSES
For many of the chemical elements there are several known isotopes. Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they
differ in the number of neutrons in the nucleus
.
How do you find the most common isotope?
The most common isotope can be found by
rounding the atomic weight found on the periodic table of elements to the nearest whole number
.
