Atomic Number Caesium,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银行、工商银行等数万家企业级客户提供全方位安全
At the Physikalisch-Technische Bundesanstalt (PTB) the atomic caesium fountain CSF1 is used as a primary frequency standard for the measurement of the scale unit of the International Atomic Time scale, TAI (Temps Atomique International), since July 2000. In total seven measurements were performed ...
Caesium atom, Chemist atom of Caesium diagram, Caesium Atomic Model, Periodic Table, Science, Atomic mass and number element, electrons revolving around the atom Author credit line ID 321128661 © Nattapon Teerapimonjun | Dreamstime.com ...
Caesium symbol. Sign Caesium with atomic number and atomic weight. Cs Chemical element of the periodic table on a glossy white background. Experiments in the laboratory. science ant technology ,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正
フランシウム是将“atomic number 87"翻译成 日文。 译文示例:As early as 1870, chemists thought that there should be an alkali metal beyond caesium, with an atomic number of 87. ↔ 1870年という早い時期に、化学者はセシウムの次のアルカリ金属である原子番号87の元素があるべきであると考...
For the past 60 years, the second has been defined in terms of atomic transitions between two hyperfine states of caesium-133. Such transitions, which correspond to radiation in the microwave regime, enable state-of-the art atomic clocks to keep time at the level of one second in more than...
1.(Atomic Physics) an extremely accurate clock in which an electrical oscillator is controlled by the natural vibrations of an atomic or molecular system such as caesium or ammonia 2.(Horology) an extremely accurate clock in which an electrical oscillator is controlled by the natural vibrations of...
1.(Atomic Physics) an extremely accurate clock in which an electrical oscillator is controlled by the natural vibrations of an atomic or molecular system such as caesium or ammonia 2.(Horology) an extremely accurate clock in which an electrical oscillator is controlled by the natural vibrations of...
Finally the number of atoms in the final state (or the initial state) is detected, again by optical or magnetic means. Because of the resonant nature of the interaction, the number of atoms in the final state depends on the difference between the frequencies of the oscillating field and the...
Atomic Number:55 Symbol:Cs Atomic Weight:132.90543 Element Classification:Alkali Metal Discoverer:Gustov Kirchoff, Robert Bunsen Discovery Date:1860 (Germany) Name Origin:Latin: coesius (sky blue); named for the blue lines of its spectrum