英英释义 a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium 访问沪江小D查看atomic number 41的更多详细解释>相关短语 atomic number 41 phr. (【化学】原子序号41铌 tin (化学元素符号Sn) 锡 three letter signal (国际信号规则的) 三字母信号 safety member...
atomic number 41noun a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium +添加翻译 英文-泰文字典 ธาตุไนโอเบียม noun Open Multilingual Wordnet เลขอะตอม 41 ...
The meaning of ATOMIC NUMBER is an experimentally determined number characteristic of a chemical element that represents the number of protons in the nucleus which in a neutral atom equals the number of electrons outside the nucleus and that determines t
Atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in a n
Niobium - two web buttons - chemical element with atomic number 41. It is represented by the symbol Nb,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
百度试题 结果1 题目What is the atomic number of an element?ps:Please answered in English 相关知识点: 试题来源: 解析 最佳答案译文,什么是元素的原子序数?It is the number of an element in thePeriodic table of the elements.反馈 收藏
34 An element has an atomic number of 4.Which statement about this element is correct? A A It forms ions by losing electrons. B It has four occupied electron shells in each of its atoms. C It is an unreactive gas at room temperature and pressure. D It is found in Group IV of the...
The element with atomic number 14 is? A. Silicon B. Phosphorus C. Sulfur D. Chlorine 相关知识点: 试题来源: 解析 A。解析:原子序数为 14 的元素是硅元素。磷元素原子序数为 15,硫元素原子序数为 16,氯元素原子序数为 17。所以答案是 A。
1947.: ‘Technetium: The element of atomic number 43’, Nature (Lond.) 159 , 24 pp.Technetium: the element of atomic number 43 - unknown authors - 1947Perrier, C. and Segre, E. 1947.: `Technetium: The element of atomic number 43', Nature (Lond.) 159, 24 pp....
The chemical element with atomic number 14 is silicon. What is the abbreviation for s