百度试题 结果1 题目19 Which element is in the same period of the Periodic Table as silicon? C A germanium B scandium C sodium D strontium 相关知识点: 试题来源: 解析 C 反馈 收藏
78.1. THE PERIODIC TABLE 元素周期表 (图片可点击放大) In this section, we will explore the periodic table, which organizes chemical elements and provides valuable information about their properties and relationships. Understanding the periodic ...
Silicon element from the periodic table. Metallic icon 3D rendered with nice lens flare,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
Si silicon chemical element periodic table,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
Atomic structure and theperiodic table. Helium, the next element in theperiodic table, contains two electrons encircling a nucleus containing two protons. Sentencedict.com is a sentence dictionary, on which you can find nice sentences for a large number of words. ...
As with any reactive element, sodium's character is changed completely when it's incorporated into a chemical compound. Let sodium, a reactive metal, and chlorine, a poisonous, choking gas, react with each other (which they do with a violent explosion) and the result is common table salt,...
Periodic Table Curious Facts The Most Expensive Element Lutetium is a metal and the most expensive chemical element available. The price of 1 gram is $100. Francium, however, is the most expensive element that can be produced. A small amount will cost a few billion. ...
I chose this sample to represent its element in myPhotographic Periodic Table Poster. The sample photograph includes text exactly as it appears in the poster, which you are encouraged to buy a copy of. Source: Contributor: 10 January, 2004 ...
The world system , is composed of 100 kinds of elements in elementperiodic table. 元素周期表中的100余种元素组成了宇宙的物质世界. 期刊摘选 This book, which was a simple outline of theperiodic tableand atomic structure, impressed me greatly. ...
Periodic Table Curious Facts The Most Expensive Element Lutetium is a metal and the most expensive chemical element available. The price of 1 gram is $100. Francium, however, is the most expensive element that can be produced. A small amount will cost a few billion. ...