There are four elements: carbon, hydrogen, oxygen and nitrogen. Which one is a non-metal element? A. carbon B. hydrogen C. oxygen D. nitrogen 相关知识点: 试题来源: 解析 ABCD 都是非金属元素。本题考查化学元素的分类。碳、氢、氧、氮都是非金属元素。
Among these elements, which one is a non - metal element known for its excellent electrical conductivity? A. Silver B. Copper C. Graphite D. Iron 相关知识点: 试题来源: 解析 C。解析:Graphite(石墨)是碳的一种同素异形体,属于非金属元素,它以良好的导电性而闻名。Silver(银)、Copper(铜)和Iron...
the seventh element of the periodic table between carbon and oxygen is nitrogen. it’s an important part of amino acids. around eighty per cent of the earth’s atmosphere comprises nitrogen gas. it has no colour, mostly diatomic non-metal gas which is odourless and colourless in nature. ...
What is the least reactive non-metal? What kind of metal is darmstadtium? What are the chemical elements of metal alloy? What are the most nonreactive metals? What is a substance in chemistry? What are some metals on the periodic table?
4 But it is not a one–way relationship between material and non–material culture. Material culture can also influence the non-material aspects of culture. For example, a powerful documentary film might change people’s attitudes and beliefs. 5 What has come before in terms of music, film,...
A. Neon B. Hydrogen C. Argon D. Krypton 相关知识点: 试题来源: 解析 B。解析:Hydrogen(氢)是非金属元素,在自然界中以双原子分子H₂的形式存在。Neon(氖)、Argon(氩)和Krypton(氪)是稀有气体元素,它们是单原子分子。反馈 收藏
a是一家以稀、散、贵有色金属和非金属矿产开发利用以及有色金属新型环保铜合金、新能源的研发与生产为主的股份制企业,也是四川省“十一五”规划中新型环保铜合金、新能源领域高新技术产业化示范企业 Is one by thin, disperses, the expensive non-ferrous metal and the non-metallic mineral development use as...
An element has an atomic number 16. State whether it is a metal or non-metal. View Solution An ... ... is a homogeneous mixture of two or more metals and non-metals. View Solution Give three differences between metals and non-metals. View Solution During ...
NMCNon-Mission Capable NMCNew Music Canada(Internet radio station) NMCNoble Metal Catalyst(chemistry) NMCNew Media Consulting(various organizations) NMCNissan Motor Corporation NMCNagoya Medical Center(Japan) NMCNonprofit Management Center(various locations) ...
In addition, CAMPER pathways were coded for their oxygen dependence on the basis of previous biochemical knowledge. CAMPER pathways were also placed into a trophic degradation hierarchy on the basis of their transformation of polymeric polyphenols, monomeric polyphenols, or simple phenols. Finally, any...