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放射性元素
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tennessine
人工放射性元素,元素符号Ts,原子序数117,半衰期最长的同位素的质量数294。属周期系ⅦA族,是已知第二重的元素。以合成该元素的美国橡树岭国家实验室、范德堡(Vanderbilt)大学等研究机构所在的田纳西州(Tennessee)命名。曾被称为117号元素(ununseptium),符号Uus。
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