官方APP下载:英语全能特训(微信小程序版,支持苹果手机、安卓手机)
创办于2003年
UNSV记不住?那就记中文谐音“忧安思危”吧!
  Slow and Steady Wins the Race!
UNSV英语学习频道 - Slow and steady wins the race!
公众微信服务号
英语全能特训(微信公众服务号)
UNSV英语学习频道淘宝网店
客服短信:18913948480
客服邮箱:web@unsv.com
初级VIP会员
全站英语学习资料下载。
¥98元/12个月

Four New Elements Added to Periodic Table

阅读次数:


VIP会员专享下载:(非VIP会员无权下载!如果想下载,但还不是VIP会员,请点此订购
下载方式:使用鼠标右键(注意是鼠标右键!)点击下面的MP3音频/MP4视频链接,然后选择“另存为…”。
MP3节目录音 MP3节目录音 
文章正文
同步字幕
Four new elements have been added to the periodic table.
Four new elements have been added to the periodic table.

Four new chemical elements have been officially added to the periodic table.

The International Union of Pure and Applied Chemistry announced names of the new elements earlier this week. They are Nihonium (Nh), Moscovium (Mc), Tennessine (Ts), and Oganesson (Og).

The names were chosen by the scientists who discovered them. All of the elements are man-made, created in labs by nuclear researchers. Those researchers are from Japan, Russia and the United States.

Moscovium is named after Moscow, the Russian capital. Oganesson is named in honor of the 83-year-old Russian researcher Yuri Oganessian. Oganesson is only the second element to be named after a living scientist.

Tennessine is named after the American state of Tennessee. American researchers named the new element. They work for Oak Ridge National Laboratory and Vanderbilt University, both of which are based in the state.

A group of Japanese researchers came up with the name for the fourth new element, Nihonium. The word “Nihon” means Japan in Japanese.

Elements can be named for an idea or character in mythology, a mineral, a place, a scientist or a property of the element.

The chemistry union usually likes names that are easy to translate across major languages. The names must have endings like “-ium,” “-ine” or “-on,” depending on the grouping of elements they belong to.

The four new names will now be under consideration for five months to give time for any possible objections.

I’m Dan Friedell.

This story first appeared on VOANews.com. Jim Dresbach adapted the report for Learning English. George Grow was the editor.

What are your memories of studying the periodic table? We want to hear from you. Write to us in the Comments Section or visit our Facebook page.

Words in This Story

mythologyn. the myths of a particular group or culture

translate – v. to change words from one language into another

网友的学习评论(0条):
版权所有©2003-2019 南京通享科技有限公司,保留所有权利。未经书面许可,严禁转载本站内容,违者追究法律责任。 互联网经营ICP证:苏B2-20120186
网站备案:苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台