An atom with the same number of protons in the nucleus but a different number of neutrons is called an isotope.
For example, uranium-238 is an isotope of uranium-235, because it has 3 more neutrons in the nucleus.
It has the same number of protons, otherwise it wouldn't be uranium.
The number of protons in the nucleus of an atom is called its atomic number.
[Show full abstract]WHILE determining the radiogenic argon-40 content of the Beardsley chondritic meteorite1, a mass spectrometric search for xenon-129 produced by decay of iodine-129 was made. Within the limits of experimental error, this xenon had a normal isotopic composition2. [Show full abstract]Nick Shackleton is widely recognized for his major discoveries connecting the isotopic record preserved in foraminifera (Fig.
The total amount of xenon which was observed was 5 × 10-9 c.c. 1) that grew in the oceans and the mass of ice stored in ice sheets during periods of continental glaciations. [Show full abstract]Data provided are for informational purposes only.
It is shown that there are excesses of certain isotopes that may be assigned to the decay of short-lived radioactive nuclei corresponding to an abundance of about 0.0001 relative to a neighboring stable isotope.
This abundance is roughly similar to the level of general...
Contrary to creationist claims, it is possible to make that determination, as the following will explain: By way of background, all atoms of a given element have the same number of protons in the nucleus; however, the number of neutrons in the nucleus can vary.Potassium^(40) decays by K-electron capture to argon^(40) with the emission of a gamma and by beta emission to calcium^(40) (see Figure 3.1).An overview is given of the existence and abundance of short-lived nuclei that were present in the early solar system. AUTHORS:20141002-134957051 Full text is not posted in this repository.Ar dating is a major method that researchers have used to understand the structural evolution of the Maria Fold and Thrust Belt.