The meaning of PERIOD is the completion of a cycle, a series of events, or a single action : conclusion. How to use period in a sentence. Synonym Discussion of Period.
periodn(periodic table)SCSimplified Chinese周期zhōu qī TCTraditional Chinese周期 / 週期 The periodic table is made up of 9 horizontal periods. 化学元素周期表是由9个水平的元素周期组成的。 periodnrare(sentence)(罕见用法)SCSimplified Chinese完整句wán zhěng jù ...
In the periodic table of the elements, elements are arranged in a series of rows (or periods) so that those with similar properties appear in vertical columns. Elements of the same period have the same number of electron shells; with each group across a period, the elements have one more ...
词组短语: ❶periodic table 周期表 ❷periodic structure 周期性结构;周期组织 ❸periodic wave 周期波 例句: ❶Periodic checks are carried out on the equipment. 设备定期进行检查。 ❷This kind of periodic orbit is only a phase in a comet's life. 这种周期性轨道只是彗星生命中的一个阶段。 ...
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Word family adjectiveperiodicperiodicalnounperiodicalistperiodicityperiodizationperiodic tableperiod pieceperiodadverbperiodicallyverbperiodizeRelated topics: Human, Letters & punctuation, School, Sport, Biologype·ri·od1 /ˈpɪəriəd $ ˈpɪr-/ ●●● S1 W1 AWL noun [countableC] 1...
Google Share on Facebook the present or current time, as distinguished from all other times. See also:Period Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co. Want to thank TFD for its existence?Tell a friend about us, add a link to this page, or visitthe...
直播片段-前缀peri-, period, periodic, periodic table 692022-07 3 直播片段-词根homo.词根heter.homosexual,heterosexual 542022-07 4 直播片段: 后缀-ism, organism, microorganism 542022-07 5 直播片段-一天背100个单词 522022-07 6 直播片段-背单词的最快方法 602022-07 7 四级/六级/考研-empty-handed,sho...
period最普通用词,概念广泛,时间长短不限,既可指任何一个历史时期,又可指个人或自然界的一个发展阶段。 双语例句 用作名词(n.) He feels completely restored to health after a period of intensive care. 通过一段时间的精心照顾,他感到身体完全康复了。
1) This question is about the Periodic Table.a) How many elements are there in period 3 of the Periodic Table?(1)b)Place the first 3 elements of period 3 in order of increasing reactivity.(1)c) Explain your reasoning to part (b).(1)d) Mark with an × the statement that best des...