名词[化]同位素

1. 同位素：科学家估计宇宙的年龄是介乎一百亿至一百六十亿之间;2001年科学家利用南欧洲天文台(EuropeanSouthernObservatory)的望远镜,观察一颗称CS31082-001的星球,量度星球上放射性(tive)同位素(isotope)铀-238(Uranium-238)的光谱(trum),

2. [化]同位素：erotogenic 性感应区的,动欲的,动情的,引起性欲的 | isotope [化]同位素 | teartape 撕条, 拉带

3. 同种位;同位素：isotonic 等渗的 | isotope 同种位;同位素 | isotropic 各向同性的

4. 同位元素：isomer-異性体 | isotope-同位元素 | Kelvin-絶対温度

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1. 同位素
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;Isotopes are atoms that have the same number of protons and electrons but different numbers of neutrons and therefore have different physical properties.

[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;e.g. ...tritium, a radioactive isotope of hydrogen.
[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;[…]nbsp;氢的放射性同位素氚

七彩网·英语单词

noun

1. one of two or more atoms with the same atomic number but with different numbers of neutrons