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Technetium
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∙ 12y ago
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What is the lightest element on the periodic table with no stable isotopes?
the answer is Technetium
What is Isotope purity?
If an element has one and only one stable isotope, an example is Gold.
If you had a stable element 115 could you then have an isotope of it that would be non-radioactive?
If you had a stable element 115, then by definition there would need to be at least one non-radioactive isotope. Stable elements are those that have at least one nonradioactive isotope. Of course, the other isotopes of the element could all be radioactive.
What is the atomic mass of roentgenium?
The atomic mass of the most stable isotope of Roentgenium is 281. This most stable isotope decays in around 36seconds. Oddly, it's most stable isotope has the same atomic mass as the most stable isotope of the element before: Darmstadtium.
How long did element 112 stay stable for?
The most stable isotope is 285Cn, which has a half life of 30 seconds. The least stable isotope is 277Cn, which has a half life of 0.7 milliseconds.
What is the lightest element that can undergo radioactive decay and what type of decay occurs in that element?
The lightest "element" that can undergo radioactive decay is the isotope hydrogen-3, which undergoes beta decay. The lightest element with no radioactively stable isotopes is technetium, and its isotopes have different modes of decay.
What is the lightest element on the periodic table with no stable isotopes?
the answer is Technetium
What is Technium 99?
I suspect you mean technetium 99. Technetium is a radioactive element (atomic number 43 on the periodic table). It is the lightest element with no stable isotope, and as such is used frequently in medicine. See the Wikipedia article for more details.
What is Isotope purity?
If an element has one and only one stable isotope, an example is Gold.
If you had a stable element 115 could you then have an isotope of it that would be non-radioactive?
If you had a stable element 115, then by definition there would need to be at least one non-radioactive isotope. Stable elements are those that have at least one nonradioactive isotope. Of course, the other isotopes of the element could all be radioactive.
Is Cs a radioactive element?
No, it has only one stable isotope.
What is the atomic mass of roentgenium?
The atomic mass of the most stable isotope of Roentgenium is 281. This most stable isotope decays in around 36seconds. Oddly, it's most stable isotope has the same atomic mass as the most stable isotope of the element before: Darmstadtium.
Can a radioactive element completely decay so that it is all stable matter?
A radioactive element (atom) can decay up to a stable isotope.
Definition of elements that are stable?
This is an element (more exactly an isotope) which is not radioactive.
How long did element 112 stay stable for?
The most stable isotope is 285Cn, which has a half life of 30 seconds. The least stable isotope is 277Cn, which has a half life of 0.7 milliseconds.
Is All isotopes of a given element are radioactive?
No. The most common isotope(s) of an element are often stable.
Does the atomic mass of an element depend upon the relative abundance of each isotope of the element?
Yes. The gram atomic mass of each element is the sum of the products of each stable isotope's isotopic fraction multiplied by the mass of that isotope.
