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What is the total mass of 222Rn remaining in an original 160-milligram sample of 222Rn after 19.1 days?
Wiki User
∙ 9y ago
5.0 mg is the total mass of 222Rn remaining in an original 160-milligram sample of 222Rn after 19.1 days.
Wiki User
∙ 9y ago
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What dangerous gas is produced by the decay of radium-226?
Radium is very radioactive and toxic; the most simple effects are dermatological but an acute irradiation (or intoxication) can lead to death.
Radium-228 decays by alpha decay Part of the nuclear equation is shown?
224
How many protons and electrons does Rb- have?
There are several isotopes of radon, but the one that we find naturally in trace amounts on earth is 222Rn. A neutral (non-ionized) atom of radon-222 has 86 protons, 136 neutrons and 86 electrons.
What is the atomic number of 222Rn?
86
222Rn emits a beta particle to produce what element?
radiation
What is the most harmful isotope of Radon?
The most stable isotope of radon is 222Rn.
What is the name of the isotope with 86 protons and 136 neutrons?
Radon-222, or 222Rn.
Is radon the element naturally occurring?
The radon isotopes 222Rn and 220Rn are natural isotopes.
Will a sample of radon-222 eventually all disappear?
Maybe, and maybe not. It depends on how large the sample is and how long "eventually" is. Though radon has a modest half-life, it still takes a long, long time for any appreciable amount to decay to the point where we can't detect it. Remember that any "sample" will contain radon atoms numbered in many powers of ten. Then there's the fact that a half-life is a statistically derived amount of time, meaning that a single given atom or a small number of atoms won't "obey" the "rule" of the half-life and decay "on schedule" per the time cited. All the atoms of radon-222 may not disappear "eventually" as was asked. But for all practical purposes, a sample might be said to disappear over geologic time. Radon-222, an isotope of the radioactive inert gas, has a half-life of 3.8235 days. That means that in 3.8235 days, half of the 222Rn sample will be gone. In another 3.8235 days, half of that remaining 222Rn will be gone. And so on. Note that the radon-222 is undergoing radioactive decay to "disappear" as was asked. Additionally, each radon-222 atom that decays will have to undergo another 7 decay events to become a stable isotope of lead. And all of this is radioactive decay.
When radium emits an alpha particle the resulting nucleus has atomic number?
The result is radon, atomic number 86. 226Ra - alpha particle = 222Rn (radon, a radioactive gas)
What is the element radon's isotopes?
Radon has four main isotopes: 210Rn, 211Rn, 222Rn, and 224Rn. Radon-222 is the most stable form.
What happens when two protons and two neutrons are ejected from a radium nucleus?
The radioactive gas radon is obtained: 226Ra-----alpha particle------222Rn
When a radon 222 nucleus decays what is the other product that forms?
Radon-222 undergoes alpha decay to produce polonium-218as a daughter.
Is radon-222 an earth mineral?
No, Radon is an element. 222Rn belongs to the radium and uranium-238 decay chain, and has a half-life of 3.8235 days.
Is radon manmade or natural?
The radon isotopes 218Rn, 219Rn, 220Rn and 222Rn are natural isotopes. The other isotopes are manmade. See also the link below.
