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To explain those rules, I'll need to talk about some basic atomic physics. Hydrogen-1's nucleus consists of only a single proton.
Protons and neutrons together are called nucleons, meaning particles that can appear in the atomic nucleus.
All these methods point to Earth being very, very old -- several billions of years old.
Young-Earth creationists -- that is, creationists who believe that Earth is no more than 10,000 years old -- are fond of attacking radiometric dating methods as being full of inaccuracies and riddled with sources of error.
(Note that this doesnt mean the half-life of an element is a constant.
Different nuclides of the same element can have substantially different half-lives.) billion years old.
There are two common kinds of radioactive decay, alpha decay and beta decay.
In alpha decay, the radioactive atom emits an alpha particle.
So an atom of potassium-40 (K40), atomic number 19 can absorb an electron to become an atom of argon-40 (Ar40), atomic number 18.
The half-life of a radioactive nuclide is defined as the time it takes half of a sample of the element to decay.
When I first became interested in the creation-evolution debate, in late 1994, I looked around for sources that clearly and simply explained what radiometric dating is and why young-Earth creationists are driven to discredit it.Tags: Adult Dating, affair dating, sex dating