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99.988% of potassium found in nature is not radioactive. 0.012% of natural potassium is 40K, which is radioactive and has a half life of about 1,248,000,000 years. Like all other elements, synthetic radioactive isotopes of potassium exist.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoPotassium is an isotope. There are many isotopes of potassium, the most common naturally occurring isotope having mass number 39 (39K). The next most common natural potassium isotopes are 40K and 41K.
Wiki User
∙ 12y agoyes all potassium is radioactive a far as i know. the proof was on bang goes the theory which showed salt - sodium chloride and it was radioactive. this was because it was low sodium salt and par t of it was repleced with pottasium. to make pottasium chloride, which is radioactive!
hope it helps!!!
Wiki User
∙ 13y agoYes, it has the following three: 39K (93.3%), 40K (0.0117%), and 41K (6.7%).
Wiki User
∙ 13y ago39K (93.3%), 40K (0.0117%), and 41K (6.7%).
Wiki User
∙ 11y agoIt is a stable isotope, but the most stable isotope is potassium-39.
Wiki User
∙ 15y ago17 17 17
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Is chlorine reactive?
Yes, Chlorine is highly reactive and dangerous even at low concentrations. If it is extremely dilute it can be safely added to water to kill bacteria that are dangerous to people.
What is the correct formula for elemental oxygen?
Oxygen has three naturally occurring isotopes: 16O, 17O, and 18O. The most abundant is 16O, with a small percentage of 18O and an even smaller percentage of 17O.
How many elements were known in 1860?
In the year 1869, sixty-three elements were known. Out of the 92 naturally-occurring elements, the following were yet to be found:HeliumNeonArgonScandiumGalliumGermaniumKryptonTechnetiumXenonthe Lanthanoids*HafniumRheniumthe Radioactive Elements***With the exception of lanthanum, cerium, and terbium.**With the exception of thorium and uranium.
Is magnesium chloride a molecule?
No, Bromine, Iodine, Oxygen, Hydrogen and Nitrogen all are though. Magnesium exists as individual atoms.
What are three isotopes and isobars of carbon?
isotopes of carbon are atomic no. 6 mass 12 , atomic no.6 mass 13 , atomic no. 6 mass 14
How does potassium-19 differ from potassium-41?
The nomenclature "potassium-19" is not commonly used because it is redundant. The 19 in potassium-19 would indicate the number of protons in potassium. All isotopes of potassium have 19 protons. Therefore 19 is known as the atomic number of potassium. Potassium-41 is one of the three naturally occurring isotopes of potassium. It has 19 protons and 22 neutrons, giving it an atomic mass number of 41.
Is silicon radioactice?
Naturally occurring silicon, of which there are three isotopes, is not radioactive, There are a half dozen artificial radioisotopes.
Is uranium naturally occurring or is it syntherically made?
Uranium has three natural isotopes: 234, 235 and 238; also uranium has ca. 25 artificial isotopes.
How does argon naturally occur?
Argon occurs as a result of the radioactive decay of 40K ( potassium 40 ) Potassium is common on Earth; about 1/60th of it's crust is potassium. Naturally occurring potassium is a mixture of three isotopes. Almost all of it is 39K and 41K, both of which are stable. About 1 atom in 10,000 is 40K, which is unstable. It has a very long half-life, >109 years; it decays to 40Ar which is stable.
What is the mass number of potasium?
Potassium occurs naturally on earth in three isotopes with mass numbers 39, 40, and 41. Of these, the isotope K-40 is known to be radioactive, but has a very long half life. There are many other radioactive isotopes of potassium.
Is osmium radioactive?
Osmium is very weakly radioactive. There are seven naturally occurring isotopes of osmium, four of which are stable. The three radioactive isotopes all have very long half lives, but they account for 42.39% of it.
What are the names of common isotopes of selenium?
Selenium has six naturally occurring isotopes, five of which are stable: 74Se, 76Se, 77Se, 78Se, and 80Se. The last three also occur as fission products, along with 79Se, which has a half-life of 327,000 years. The final naturally occurring isotope, 82Se, has a very long half-life (~1020 yr, decaying via double beta decay to 82Kr), which, for practical purposes, can be considered to be stable. Twenty-three other unstable isotopes have been characterized
How many isotopes of hydrogen are know?
There are three known naturally occurring isotopes of hydrogen; hydrogen-1 with one proton and no neutrons, hydrogen-2 with one proton and one neutron, and hydrogen-3 with one proton and two neutrons.
What element is an example of a homogenous mixture?
No element is a mixture of any chemical type, because by definition an element is a chemical substance that can not be broken down into simpler substances by chemical means. However, many elements can be separated by physical means into isotopes that differ from one another in atomic number. If these are considered mixtures, then many naturally occurring elements can be considered homogeneous mixtures. The element of lowest atomic number that has more than one stable isotope making up at least 5 % of the naturally occurring atoms is lithium, and the next lowest such element is boron. The next lowest such element is magnesium, which has three isotopes all satisfying this criterion. Titanium, with atomic number 22, has five such isotopes. Zinc, element 30, has five naturally occurring isotopes, three of which constitute more than 15 % each of the atoms in naturally occurring zinc. Germanium naturally contains five isotopes, each of which constitutes at least 5 % of the atoms, and 3 of these isotopes constitute at least 20 % of all the atoms each.
Does Argon Decay?
There are over twenty known isotopes of argon. Of these all but three are radioactive and decay. Of naturally occurring argon, very nearly 100% is not radioactive, with only traces of one radioactive isotope found.
How many isotopes does sodium have?
1. Sodium has 20 isotopes and 2 isomers. 2. Only the isotope 23Na is stable. 3. The stable isotope 23Na and the radioactive isotopes 22Na and 24Na (these isotopes exist in traces) are natural isotopes.
Is hydrogen a radioactive element?
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