Isotopes

Yes because they look at the ammount of radioactive decay and they can determine the age of the granite. As the radioactive isotope decreases the non radioactive element increases. The less radioactive decay ammount there is the older it is.

The most abundant isotope of xenon is xenon-132. It makes up about 26.9% of naturally occurring xenon.

No, 1-hexyne is not an isotope.

Isotopes are same elements that have the same number of protons (and therefore the same chemical properties) but different numbers of neutrons. They have slightly different atomic masses due to the varying number of neutrons in their nuclei.

1-hexyne, on the other hand, is a specific chemical compound. It is an alkyne with the molecular formula C6H10 and a carbon-carbon triple bond at the first position in a hexane chain. Isotopes are not specific chemical compounds, but they are variations of elements.

Henri Bacquerel first experimented with phosphorescent materials and discovered radioactivity. The Curies and Ernest Rutherford later experimented with it.

--------------------------------------------------

The first hypothesis on isotopes is from Frederick Soddy (1912); the practical confirmation is attributed to J. J. Thomson (1913).

Henri Becquerel discovered the phenomenon of radioactivity studying uranium salts.

Since the radioactive decay of 14C is first order, one can use the equation of
fraction remaining = 0.5^n where n is the number of half lives. 28650yr/5730 yr = 5 half lives. Thus..
fraction remaining = 0.5^5 = 0.03125 or 3.125% would be remaining.

Isotopes of the same element have the same number of protons and electrons, but varied numbers of neutrons.

Isotopes are atoms of the same element with the same number of protons but different number of neutrons. Some examples of atoms with isotopes are hydrogen (protium, deuterium, tritium), carbon (carbon-12, carbon-13, carbon-14), and uranium (uranium-235, uranium-238).

Neon 16 through to Neon 34 have been synthesised/discovered.

Neon 9 through to Neon 11 are the naturally occurring isotopes,

all of which are stable. Neon 9 comprises over 90% of natural Neon in the air.

Neon 15 is the most recently reported and has not been verified (as of may 2014). Other isotopes, both heavier and lighter, could be synthesised in the future, increasing the isotope count.

Xenon is an element on the periodic table with the symbol Xe and atomic number 54. Xenon has several isotopes, including xenon-129 and xenon-131, which have different numbers of neutrons in their nuclei. Xenon is a colorless, odorless noble gas that is commonly used in various applications such as lighting and medical imaging.

The atomic mass minus the atomic number equals the number of neutrons. Thus in the case above the number of neutrons would calculate out to be 11. HOWEVER PLEASE NOTE Rhenium (Re) does not have an atomic mass of 86, it has two isotopes one of atomic mass 185 and another of atomic mass 187. Thus the real number of neutrons is 110 or 112.

You can use a mass spectrometer, that is it detects the mass of the particle based on inertia. As isotopes differ from each other in the number of neutrons they have, a difference in charge cannot be detected.

A stable isotope does not decay and therefore, maintains a constant concentration on Earth. An unstable isotope, also known as a radioactive isotope, decays at a predictable

and measurable rate on Earth. An unstable isotope may decay by the ejection of an electron or positron, known as beta decay, or by the ejection of two protons and two neutrons, known as alpha decay.

More than 99%of naturally occurring uranium is U-238. The valuable U-235 makes up less than 1% of uranium, and must be "enriched" in complicated processes.

The number of protons determines the atomic number of an element. The number of protons and neutrons determines the mass number. The number of electrons determine it's electrical charge. So, in an isotope, normally the only thing that changes is the number of neutrons and it's mass number. The answer to your question, as I understand it, is no.

The nuclear symbol for chromium-50 is 5024Cr.

Manganese has only one isotope that occurs in nature. Its atomic mass is approximately 54.940 amu.

There's just the one, and it's 222Rn, or radon-222. There might be a trace of some of the other isotopes around if there has been a nuclear accident or the like, but it is unlikely that they could be detected unless the accident was huge, had just occurred and you were testing right on top of it.

Phosphorus-32 (P-32) is commonly used in pest control as a radioactive isotope that can help control insect populations. When pests are exposed to P-32, it can disrupt their biological processes and lead to reduced populations.

Carbon-14 is used to determine the age of fossils. Radiation therapy for cancer comes from isotopes that emit gamma rays. Thyroid tissue that may be cancerous and has left the throat region can be located in the body with radioactive iodine.

Yes, a natural isotope can be radioactive. Some natural isotopes have unstable nuclei and undergo radioactive decay to achieve a more stable form. This process involves the emission of radiation in the form of alpha particles, beta particles, or gamma rays.

neutrons = 22 (for the most stable isotope of argon, Ar-40)

Radioactive isotopes are a subset of isotopes. If we look at all isotopes, some of them are radioactive. That means that they have unstable nuclei, and they will decay spontaneously sooner or later.

Isotopes are used to create energy in at least two ways: # The isotopes are allowed to heat water into steam, and the steam turns a generator. # The isotopes are allowed to heat one end of a "thermopile", and the thermopile powers electronics. (This is how the deep space probes get their power.)

O16 is the most common isotope of oxygen.
most common isotope for oxygen is O18

Carbon is the element that has four isotopes: carbon-12, carbon-13, carbon-14, and carbon-15. Each isotope has a different number of neutrons in its nucleus, resulting in variations in atomic mass.