The equation for the beta decay of 14C: From Wikipedia see the Related Link below: By emitting an electron and an anti-neutrino, carbon is changed into stable non-radioactive nitrogen This decay can be used to get a measure of how long ago a piece of once-living material died.
The Radiometric Dating Game Radiometric dating methods estimate the age of rocks using calculations based on the decay rates of radioactive elements such as uranium, strontium, and potassium. On the surface, radiometric dating methods appear to give powerful support to the statement that life has existed on the earth for hundreds of millions, even billions, of years.
We are told that these methods are accurate to a few percent, and that there are many different methods. We are told that of all the radiometric dates that are measured, only a few percent are anomalous. This gives us the impression that all but a small percentage of the dates computed by radiometric methods agree with the assumed ages of the rocks in which they are found, and that all of these various methods almost always give ages that agree with each other to within a few percentage points.
Since there doesn't seem to be any systematic error that could cause so many methods to agree with each other so often, it seems that there is no other rational conclusion than to accept these dates as accurate. However, this causes a problem for those who believe based on the Bible that life has only existed on the earth for a few thousand years, since fossils are found in rocks that are dated to be over million years old by radiometric methods, and some fossils are found in rocks that are dated to be billions of years old.
If these dates are correct, this calls the Biblical account of a recent creation of life into question. After study and discussion of this question, I now believe that the claimed accuracy of radiometric dating methods is a result of a great misunderstanding of the data, and that the various methods hardly ever agree with each other, and often do not agree with the assumed ages of the rocks in which they are found.
I believe that there is a great need for this information to be made known, so I am making this article available in the hopes that it will enlighten others who are considering these questions. Even the creationist accounts that I have read do not adequately treat these issues.
At the start, let me clarify that my main concern is not the age of the earth, the moon, or the solar system, but rather the age of life, that is, how long has life existed on earth.
Many dating methods seem to give about the same ages on meteorites. Thus radiometric dating methods appear to give evidence that the earth and meteorites are old, if one accepts the fact that decay rates have been constant.
However, there may be other explanations for this apparent age. Perhaps the earth was made from older pre-existing matter, or perhaps decay rates were briefly faster for some reason. When one considers the power of God, one sees that any such conclusions are to some extent tentative.
I believe that life was recently created. I also believe that the evidence indicates that the earth has recently undergone a violent catastrophe.
Geologic time is divided up into periods, beginning with the Precambrian, followed by the Cambrian and a number of others, leading up to the present. Some fossils are found in Precambrian rocks, but most of them are found in Cambrian and later periods.
We can assume that the Precambrian rocks already existed when life began, and so the ages of the Precambrian rocks are not necessarily related to the question of how long life has existed on earth.
The Cambrian period is conventionally assumed to have begun about million years ago. Since Cambrian and later rocks are largely sedimentary and igneous volcanic rocks are found in Cambrian and later strata, if these rocks are really million years old, then life must also be at least million years old.
Therefore, my main concern is with rocks of the Cambrian periods and later. How radiometric dating works in general Radioactive elements decay gradually into other elements.
The original element is called the parent, and the result of the decay process is called the daughter element. Assuming we start out with pure parent, as time passes, more and more daughter will be produced. By measuring the ratio of daughter to parent, we can measure how old the sample is.
A ratio of zero means an age of zero. A higher ratio means an older age. A ratio of infinity that is, all daughter and no parent means an age of essentially infinity. Each radioactive element has a half-life, which tells how long it takes for half of the element to decay.
For potassium 40, the half-life is about 1. In general, in one half-life, half of the parent will have decayed.Oct 10, · What is the nuclear equation for the decay of carbon?
Teacher said to look it up online.
just how much effort did you put into this? It took me less time to find all this than it did for you to write the question on Yahoo Answers.
Source(s): Write the nuclear reaction for beta decay of Carbon? Answer Questions. Status: Resolved. Science Enhanced Scope and Sequence – Chemistry Virginia Department of Education © 3 Radioactive Decay and Half-life Activity Sheet Name: Date: Instructions.
A chemical element is a species of atoms having the same number of protons in their atomic nuclei (that is, the same atomic number, or Z).
For example, the atomic number of oxygen is 8, so the element oxygen consists of all atoms which have exactly 8 protons.. elements have been identified, of which the first 94 occur naturally on Earth with the remaining 24 being synthetic elements.
The older a sample of a radioactive material, the less radioactive it is.
The decrease in radioactivity follows a characteristic pattern shown in the graph or decay curve.. The y axis can represent the % radioisotope left OR the measured radioactivity. Please review the FAQs and contact us if you find a problem.. Credits: 1. Prerequisite: Algebra 1, High School Biology.
Recommended: 11th. Test Prep: CLEP This course covers the basic material for a high school chemistry course. The CLEP covers two years worth of material. Those wishing to take the CLEP will have to do significant additional study. Here is a history of questions and answers processed by "Ask the Physicist!".
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