Isotopes of curium

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Science and technology

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What Wikipedia says

Curium (96Cm) is an artificial element with an atomic number of 96. Because it is an artificial element, a standard atomic weight cannot be given, and it has no stable isotopes. The first isotope synthesized was 242Cm in 1944, which has 146 neutrons.

Excerpt from the Wikipedia article “Isotopes of curium”, under the CC BY-SA 4.0 license. Read the article on Wikipedia