| Metallic californium has been prepared and is structurally similar to metallic americium, curium, berkelium, and most lanthanoid metals. |
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| Following up on berkelium, dubnium and californium, researchers at the University of Berkely in California, stumbled upon am element with atomic number 117 about a year ago. |
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| Also, the formation of red blood cells is adversely affected by exposure to radiation from berkelium. |
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| The New Yorker wondered why they had not gone for broke, naming these two universitium and offium so as to reserve berkelium and californium for the next two elements. |
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| The 20 protons in the calcium and 97 protons in the berkelium combined to make an element with 117 protons. |
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| Under certain conditions, for example, actinium, americium, curium, berkelium, and californium metals have the same crystal structure, as do many of the lanthanoids. |
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| From a biological perspective, the toxicity of individual berkelium isotopes varies, depending on the type of radiation emitted and the length of exposure. |
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| Berkelium does not occur naturally in the biosphere and so normally never presents a risk. |
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| Berkelium accumulates in the skeletal systems of rats following prolonged exposure to the element's radiation. |
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