francium

francium怎么读

英式音标：[ˈfrænsiəm]

美式音标：[ˈfrænsiəm]

francium的意思释义

n.

（放射性元素）钫（符Fr）；

英英释义

n.a radioactive element of the alkali-metal group discovered as a disintegration product of actinium

同义词：Fratomic number 87

francium用法及例句

例句参考

francium

francium

Lifetime measurements of the 7 p levels of atomic francium

Spectroscopy with trapped francium: advances and perspectives for weak interaction studies

Hyperfine anomaly measurements in francium isotopes and the radial distribution of neutrons

Enhancement factor for the electron electric dipole moment in francium and gold atoms

Calculation of energy levels, E1 transition amplitudes, and parity violation in francium

SCF Hartree-Fock results for elements with two open shells and the elements francium to nobelium ☆

Relativistic many-body calculations of the hyperfine-structure intervals in caesium and francium atoms

francium相关例句

1. Francium is the densest of the Alkali Metals and also radioactive.

钫是碱金属中密度较大的，具有放射性。

2. Even Francium\'s most stable isotope, Francium-223 only has a half-life of 22 minutes.

钫的较稳定的同位素，钫- 223也只有22分钟的半衰期。

3. Because Francium is mainly only found synthetically in laboratory research, it has no known use outside of the laboratory.

由于钫主要仅在实验室研究中产生，它在实验室外没有已知的用途。

4. Gallium is solid at room temperature but will melt if held in your hand, caesium (Cs), and francium (Fr) ?the second rarest naturally occurring element, can also be liquid at or near room temperature.

金属镓在室温里是固体状态但是把它放在你的手上它就会融化，金属铯，元素钫这些比较稀有的元素在室温或者接近室温的情况下是液体状态的。

5. Gallium is solid at room temperature but will melt if held in your hand, caesium (Cs), and francium (Fr) ?the second rarest naturally occurring element, can also be liquid at or near room temperature.

金属镓在室温里是固体状态但是把它放在你的手上它就会融化，金属铯，元素钫这些比较稀有的元素在室温或者接近室温的情况下是液体状态的。

6.elements in the leftmost group of the periodic table (lithium, sodium, potassium, rubidium, cesium, and francium

碱金属: 碱金属是元素周期表中的Ia族元素,按原子序数增加的顺序排列为︰锂、钠、钾、铷、铯和。

8.The half-life of francium is 22 minutes.

钫的半衰期是22分钟。

9.monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium

周期表中I族的任何单价金属（锂、钠、钾、铷、铯和钫）。

-- 来源 -- 汉英 - 翻译参考