Isotopes

Isotopes have various benefits such as their use in medical imaging for diagnostics, tracing the origin of elements in scientific research, and serving as tracers in environmental studies to track the movement of substances. Isotopes also have applications in dating archaeological artifacts and monitoring geological processes.

Any given element has a specific number of protons, but the number of neutrons varies; an isotope has a specified number of nucleons (protons plus neutrons). Hydrogen 1 has no neutrons, hydrogen 2 (also known as deuterium) has one neutron, hydrogen 3 (or tritium) has two neutrons.

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No.IsotopeRelative atomic mass 1.217U217,024 368 791 ± 0,000 093 262 2.218U 218,023 535 671 ± 0,000 032 763 3.219U219,024 919 160 ± 0,000 060 946 4.*220U220,024 723# ± 0,000 215# 5.221U221,026 399# ± 0,000 110# 6.222U222,026 086# ± 0,000 108# 7.223U223,027 738 600 ± 0,000 076 347 8.224U224,027 604 778 ± 0,000 027 176 9.225U225,029 390 717 ± 0,000 012 42810.226U226,029 338 702 ± 0,000 013 99911.227U227,031 156 367 ± 0,000 018 10412.228U228,031 374 006 ± 0,000 016 05113.229U229,033 505 939 ± 0,000 006 39614.230U230,033 939 784 ± 0,000 005 11015.231U231,036 293 704 ± 0,000 003 24216.232U232,037 156 152 ± 0,000 002 36517.233U233,039 635 207 ± 0,000 002 90418. **234U234,040 952 088 ± 0,000 001 960

(natural isotope)19. **235U235,043 929 918 ± 0,000 001 957

(natural isotope)20. 235mU "21.236U236,045 568 006 ± 0,000 001 96022.237U237,048 730 184 ± 0,000 002 01923. **238U238,050 788 247 ± 0,000 002 044

(natural isotope)24. 238m1U " 25. 238m2U "26.239U239,054 293 299 ± 0,000 002 05227.240U240,056 591 988 ± 0,000 005 53328.241U241,060 330# ± 0,000 320#29.242U242,062 931# ± 0,000 215#30. ***243U243,067 36 (not surely identified)31. ***244U244,069 95 (not surely identified)

Studies of metabolism, drug utilization, and other reactions in living organisms can be done with stable isotopes such as 13C, 15N, 18O, and 2H. Molecular compounds are "spiked" with these isotopes, and the metabolizedhttp://www.answers.com/topic/metabolize products are analyzed by using a mass spectrometer http://www.answers.com/topic/spectrometerto measure the altered isotopic ratios. Also, isotopes that are unstable will emit radiation, which can be alpha particles , beta particles or gamma radiation. The radiation can be used to treat cancer in the case of cobalt-60, which emits gamma radiation. Cancerous cell are destroyed by directing a controlled beam of gamma radiation at the cells.

Every element provides a couple of isotopes which are of very different use.

For example, carbon has a radioactive isotope (14C).

You can, for example, grow bacteria on a modified substrate which contains the radioactive isotope instead of normal carbon.

The resulting generation will inherit carbon in it's cellular substance which is not only heavier (14 instead of 12 nucleons) but also emits measurable radiation.

These features can be used to reconstruate cellular growth processes, as well as in other organisms bodily functions and development.

Hydrogen has three isotopes, one of them deuterium (features one neutron), which makes it twice as heavy as normal hydrogen. D2O water is therefore much heavier than normal H2O water. As water is widely used in most metabolic pathways, "marking" with D2O can let you find the isotope in different parts of the organism and it's products. For example, a plant can be fed with D2O, afterwards you can see how much of it was metabolized and used for building biological substance, and how much of it was transpirated through the leaves.

They do not combine with or interact with most other elements or compounds. ... radioactive. No radioactive isotope of platinum has any commercial application.

Copper has natural isotopes of 63,67.

And other isotopes are known at least from 58 through 70. But these are unstable.

There are several isotopes of iron, the most frequent is Fe56 (92 percent). Suggest you look up Wikipedia for Iron. I do not understand your use of word 'resonante'. If you mean 'resonate' I still don't understand what your query really is.

Isotopes are known to exist because they are variants of a particular chemical element with the same number of protons but different numbers of neutrons, resulting in different atomic masses. These variations can be detected through techniques like mass spectrometry and nuclear magnetic resonance. The existence of isotopes has been confirmed through experimental evidence and scientific research.

Yes - they have many applications. One isotope of an element can be very stable and have one set of uses while another is unstable (radioactive) and have a completely different set of applications. Let me give 3 examples:

1. 1 proton is hydrogen. 1 p and 1 n is an isotope of hydrogen that is called deuterium (note, only hydrogen isotopes have their own names). Deuterium is widely used in "deuterated" compounds because how it interacts with a magnetic field is different than hydrogen. A 3rd isotope of hydrogen is called tritium - it is radioactive and in very low quantities in water.

2. Tc is a transition metal but not found in the earths crust. It is made in a reactor. Tc-99 (Technetium) is used in different types of nuclear medicine. Tc-98 or Tc-100 would not work for the same applications.

3. Uranium has a number of isotopes. Two of the most well known are U-25 and U-238. They different by 3 neutrons (all uranium has 92 protons). U-235 is very radioactive and is used in bombs and nuclear power plants. U-238 is more stable and is used in the tips of missiles that pierce armor. Uranium is very dense.

Remember - isotopes (i.e. H, D, T) all have the same number of protons but different number of neutrons - and the number of neutrons impacts nuclear stability.

Helium 3 and helium 4 are naturally occurring isotopes 5 thru 10 are exotic isotopes.

Radioisotopes emit radiations and although most of the time radiation is bad for your body cause it can encourage mutation and damage body cells but sometimes if used in controlled condition they can kill cancerous cells which is good

Isotopes must have the same atomic number, which is the number of protons. The atomic mass, which is the total number of protons and neutrons, varies for the different isotopes.

so it should have different mass numbers..

The atomic number of an element is the number of protons in its nucleus. Always. The mass number of an atom is the number of protons plus the number of neutrons in it. And that means an isotope of element 54 (xenon) that has 77 neutrons in its nucleus has a mass number of 54 + 77 or 131, and you'll have an atom of 131Xe. A link can be found below.

Yes, the three isotopes of carbon (carbon-12, carbon-13, carbon-14) are chemically alike because they all have the same number of protons and electrons, which determine the element's chemical properties. The only difference is in their atomic mass due to the varying number of neutrons.

As the atomic number of nitrogen is 7, the most abundant isotope of this atmospheric gas must have 7 neutrons (14.007 - 7 = about 7), and this will make nitrogen-14 that isotope that is most abundant.

Hydrogen-1 has no neutrons while Hydrogen-2 has 1 neutron
A hydrogen-1 atom (normal hydrogen) has 1 proton and 1 electron whereas a hydrogen-2 atom (deutrium) has 1 proton, 1 NEUTRON and 1 electron.

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Hydrogen has three isotopes one proton and no nutron one proton and one nutron one proton and two nutrons

an ion has a different number of electrons and an isotope has a different number of neutrons then listed on the Periodic Table or your sample

The most common isotopes of europium are europium-151 (Eu-151) and europium-153 (Eu-153). Eu-151 is stable and non-radioactive, while Eu-153 is a radioactive isotope with a half-life of about 4.7 years.

Two stable ones, 10 & 11. Several unstable.