What element has an atomic number of 11? A Pure Substance: An element is a substance made up of all the same atoms, which is unable to be chemically broken down any further. Elements make up all matter in the universe. They are often found within compounds and molecules due to the bond...
Symbol:Na Atomic Number:11 Atomic Weight:22.989768 Element Classification:Alkali Metal CAS Number:7440-23-5 Periodic Table Location Group:1 Period:3 Block:s Electron Configuration Short Form: [Ne]3s1 Long Form: 1s22s22p63s1 Shell Structure:2 8 1 Discovery of Sodium Discovery Date:1807 Discovere...
Atomic Number 115 - Existence Of New Mystery Element ConfirmedNews Staff
An element with atomic number 113 has been discovered.It will belong to which of the following block,group number,period and outershell electronic configurati
an element is a substance , all of ___ atoms have the same atomic number为什么选whose ? 请高手讲讲..相关知识点: 试题来源: 解析 首先句子后面是作定语的,由主句可以知道,修饰的是主语element.因为atoms是原子的意思,对于元素来说,逻辑关系自然是“元素里的原子”,所以element和atoms具有从属关系,用whose...
Von Hevesy, On the missing element of atomic number 72, Nature 111 , 79 (1923).Coster, D. and von Hevesy, G. (1923) On the missing element of atomic number 72. Nature , 111 , 79.Coster D, de Hevesy G. On the missing element of atomic number 72. Nature 1923;111:79....
Final Answer:The element with atomic number 113 (Nihonium) has an electronic configuration similar to that of Gallium (Ga). --- Show More | ShareSave Class 11CHEMISTRYCLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES Topper's Solved these Questions CLASSIFICATION OF ELEMENTS AND PERIODICITY ...
Atomic Number:47 Symbol:Ag Atomic Weight:107.8682 Discovery:Known since prehistoric time. Man learned to separate silver from lead as early as 3000 B.C. Electron Configuration:[Kr]5s14d10 Word Origin:Anglo-SaxonSeolfororsiolfur; meaning 'silver', and Latinargentummeaning 'silver' ...
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。
百度试题 结果1 题目The atomic number of an element represents the number of ___. A. protons B. neutrons C. electrons D. protons and neutrons 相关知识点: 试题来源: 解析 A。元素的原子序数代表质子数(protons)。反馈 收藏