Oxygen-16 IS an isotope of oxygen. If you meant to ask the number of isotopes of oxygen, the answer is 3. They are Oxygen-16, -17 and -18. Oxygen-16 is the most abundant of the isotopes.
There is one stable isotope in Niobium, Nb93 there are 28 known isotopes in all.
There are two stable isotopes of californium: californium-249 and californium-251.
There are two stable isotopes of gallium: gallium-69 and gallium-71. Additionally, there are several radioactive isotopes of gallium, but they are unstable and decay over time.
Elements with no stable isotopes include technetium (element 43) and promethium (element 61) and all elements heavier than lead (elements 83 and higher). Bismuth, element 83, is virtually stable with an extremely long half life of 1.9 x 1019 years.
Oxygen-16 IS an isotope of oxygen. If you meant to ask the number of isotopes of oxygen, the answer is 3. They are Oxygen-16, -17 and -18. Oxygen-16 is the most abundant of the isotopes.
copper has 2 stable isotopes
It has 10
No, there are many stable isotopes.
Dubnium is an artificial chemical element and hasn't stable isotopes.
it has 3 stable isotopes
No, most isotopes are not stable. Many isotopes are radioactive and decay over time, releasing radiation in the process. Only a few isotopes are stable and do not undergo radioactive decay.
If you mean oxygen: like most elements, it has both stable isotopes, and unstable (i.e., radioactive) isotopes. 16O, 17O and 18O are stable; the unstable (radioactive) isotopes include 15O and 14O.
There is one stable isotope in Niobium, Nb93 there are 28 known isotopes in all.
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3
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