- What is heavy oxygen?
- Who was the founder of oxygen?
- Why lighter nuclei are unstable?
- Which nuclide is most stable?
- Why even even nuclei are more stable?
- What keeps a nucleus stable?
- What is the oxygen used for?
- What is the most stable element?
- Is hydrogen stable or unstable?
- Is oxygen 16 stable or unstable?
- Where is oxygen 18 found?
- Is beryllium stable or unstable?
- Why are some nuclides unstable?
- What is the difference between oxygen 16 17 and 18?
- What are the 3 isotopes of oxygen?
- What is the symbol for oxygen 18?
- Why do nuclei decay?
- What is the half life of oxygen 15?
- Is oxygen 18 stable or unstable?
- Why is oxygen 15 used?
- How is oxygen 15 produced?
What is heavy oxygen?
: an isotope of oxygen having a mass number greater than 16 especially : oxygen of mass 18..
Who was the founder of oxygen?
Joseph PriestleyAntoine LavoisierCarl Wilhelm ScheeleOxygen/Discoverers
Why lighter nuclei are unstable?
In summary it is the balance of protons and neutrons in a nucleus which determines whether a nucleus will be stable or unstable. … Too many neutrons or protons upset this balance disrupting the binding energy from the strong nuclear forces making the nucleus unstable.
Which nuclide is most stable?
Nickel-62Nickel-62 is an isotope of nickel having 28 protons and 34 neutrons. It is a stable isotope, with the highest binding energy per nucleon of any known nuclide (8.7945 MeV).
Why even even nuclei are more stable?
Stable nuclei generally have even numbers of both protons and neutrons and a neutron-to-proton ratio of at least 1. Nuclei that contain magic numbers of protons and neutrons are often especially stable.
What keeps a nucleus stable?
Inside the nucleus, the attractive strong nuclear force between protons outweighs the repulsive electromagnetic force and keeps the nucleus stable. Outside the nucleus, the electromagnetic force is stronger and protons repel each other.
What is the oxygen used for?
Oxygen is used by animals and plants in the respiration (breathing) process. Tanks of oxygen are used in medicine to treat people with breathing problems. They are also used as life support for astronauts and scuba divers. The majority of the oxygen used in industry is used in the manufacturing of steel.
What is the most stable element?
Well, Iron has the most stable isotope(Iron-56), it has a large half-life which means it takes a fairly large amount of time to decay into the half of what was initially there.
Is hydrogen stable or unstable?
Hydrogen only has one electron in its lowest energy level. This is a very unstable arrangement, and hydrogen gas undergoes a variety of reactions so as to reach a stable electron configuration where its energy level is either empty of electrons, or filled with electrons.
Is oxygen 16 stable or unstable?
Oxygen-16 (16O) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus. It has a mass of 15.99491461956 u. Oxygen-16 is the most abundant isotope of oxygen and accounts for 99.762% of oxygen’s natural abundance.
Where is oxygen 18 found?
Earth’s crust … crust is generally richer in oxygen-18 (18O) than is the mantle, as a result of the reaction of these upper-layer rocks with the hydrosphere and atmosphere.
Is beryllium stable or unstable?
Beryllium is the only stable light metal with a relatively high melting point. Although it is readily attacked by alkalies and nonoxidizing acids, beryllium rapidly forms an adherent oxide surface film that protects the metal from further air oxidation under normal conditions.
Why are some nuclides unstable?
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom’s nucleus may result from an excess of either neutrons or protons.
What is the difference between oxygen 16 17 and 18?
Isotopes are elements that contain the same amount of protons, but differ in the number of neutrons in their nuclei. … Therefore, oxygen 16 has 8 protons and 8 neutrons, oxygen 17 has 8 protons and 9 neutrons, and oxygen 18 has 8 protons and 10 neutrons.
What are the 3 isotopes of oxygen?
The element oxygen (O) is found in three naturally occurring stable isotopes, 18O, 17O, and 16O. The nucleus of each of these oxygen isotopes contains eight protons and either eight, nine, or ten neutrons, respectively.
What is the symbol for oxygen 18?
OOxygen-18GeneralSymbol18ONamesoxygen-18, O-18, ΩProtons8Neutrons105 more rows
Why do nuclei decay?
Nuclear decay occurs when the nucleus of an atom is unstable and spontaneously emits energy in the form of radiation. The result is that the nucleus changes into the nucleus of one or more other elements. These daughter nuclei have a lower mass and are more stable (lower in energy) than the parent nucleus.
What is the half life of oxygen 15?
about 2 minutesThis cyclotron product has a very short half life of about 2 minutes thereby allowing for multiple, serial measurements. Oxygen-15 atom is the radioactive isotope of oxygen with relative atomic mass 15.003065. The longest-lived oxygen radionuclide with half-life of 122.2 s.
Is oxygen 18 stable or unstable?
Isotopes of oxygenIsotopeDecayabundancemode16O99.76%stable17O0.04%stable18O0.20%stable
Why is oxygen 15 used?
Oxygen-15 water is an excellent radiotracer for quantitative regional myocardial flow measurements (milliliters per minute per gram) because it is a freely diffusible perfusion tracer with 95% extraction by the myocardium that is not affected by metabolic factors.
How is oxygen 15 produced?
Oxygen-15 can be produced by different nuclear reactions, including 14N(d,n)15O, 16O(p,pn)15O and 15N(p,n)15O. The 14N(d,n)15O production route is the most frequently applied method, because it is currently the most economic method.