Isotopes

Neon-20 is considered an isotope because it has the same number of protons as the regular isotope of neon (neon-22), but a different number of neutrons. Isotopes are variations of an element that have the same number of protons but different numbers of neutrons.

It's Nickel.. 64Ni

Nitrogen take up aproximately 70% of the earths lower atmosphere.

Radio pharmaceutical is a compound used in medicine that have a radioactive atom in the molecule, radio pharmaceuticals are both diagnostic purposes or for therapy.

The atomic weight given on the periodic table is "average" weight of a sample of the element including it most common isotopes. Since the isotopes can have different weights, when one averages the weights, the number is a little off.

Madamme Curie is the first on record, that figured out what she was doing.

The most common isotope of bromine is bromine-79 (Br-79), which makes up about 51% of naturally occurring bromine.

Although chemistry usually teaches us that isotopes only differ in neutron count and not reactivity, this is not actually the case. An illustration of this can best be seen when analysing isotope abundances versus their distance from the beach.

For instance, imagine sea water evaporating. The slightly ligther 1H isotope evaporates faster than the heavier dueterium 2H isotope, hence clouds contain more 1H. As these clouds move inland, the heavier water (2H containing), falls as rain sooner, meaning rain water closer to the sea contains more dueterium.

This same principle can be applied to all the elements, and although, strictly speaking isn't a chemical reaction, more of a physical process, you can see that this principle can be applied in certain reactions. so, yes, isotopes do differ in reactivity.

Thrutchywaynefish

4+ because however much more protons there are then that is the charge

There is no specific number; each element has another number of natural and artificial isotopes.

Mass number = Number of protons + Number of neutrons

For the isotope 241Am the mass number is 241; for 242Am is 242, for 243Am is 243, etc.

Americium has isotopes with mass numbers that range from 231 through 249.

Isotopes of hydrogen are similar in chemical properties; they react with chlorine to give hydrogen chloride. However, the physical properties show a difference; deutirium molecule has a higher boiling point than that of protium.

it must eject the extra nucleons and should be conveted into a stable isotope.

The band of stability is a way of viewing which isotopes of the elements are stable. If you make a graph of number of neutrons versus number of protons of the stable isotopes, you find that the stable isotopes make a thick curved line on the graph which is called the "band of stability." The lighter elements tend to have the number of neutrons equal to number of protons. The heavier elements tend to have more neutrons than protons. The band of stability can help you to predict the behavior of unstable radioactive isotopes as well, because you can predict which decay process will move the element closer to the "band of stability" so it will have the ideal ratio of neutrons to protons.

Elements that differ in atomic weight from other atoms of the same element (ie their atomic masses are different to each others due to a different number of neutrons) are known as isotopes. Example: carbon-14 which has 6 protons and 8 neutrons in its nucleus and an atomic mass of 14, as opposed to regular carbon (carbon-12) which has 6 protons and 6 neutronsin its nucleus, and an atomic mass of 12. Carbon-14is an isotope of carbon.

You can tell isotopes apart by the difference in there atomic mass numbers. Take for example the isotope Carbon-12. Carbon is the element name and 12 is the atomic mass of the element. The atomic mass number can (most?) always be changed, but the the atomic number ( the number above the Element symbol on the Periodic Table) cannot. Remember: The number of protons add by the number of neutrons equals the atomic mass number. The proton number = the atomic number, as of the number of electrons= the atomic number; hence the atomic number= number of proton = number of electron.

carbon 12

Radioactivity is indeed used to treat some types of cancer. Electron beams are used for surface cancers due to their lower energy. Proton beams and neutron beams are used to treat other hard to reach cancers. Carbon ion radiation is also sometimes used.

From 0 to 3 isotopes per element are stable.

There is no way to tell how many isotopes an element has. The only way to know is if you do some research and find out or if your teacher tells you!

Through neutron bombardment. Muons produce neutrons and isotopes can be naturally stabilized via muons