Element Classification:Radioactive Rare Earth Element (Actinide Series) Nobelium Physical Data Melting Point (K):1100 Appearance:Radioactive, synthetic metal. Atomic Radius (pm):285 Pauling Negativity Number:1.3 First Ionizing Energy (kJ/mol):(640) Oxidation States:3, 2 References:Los Alamos Nationa...
(可能是用某些实验得出了一个元素的atomic number 结果找不到已知相应的元素 那么有可能就是发现了一种新元素 或者实验错误)讲的繁琐一点就是there have been atomic numbers[←我觉得应该要有s],and there's no known element for such atomic numbers.atomic number和element之间介词用for 在这个which的定语从句...
atomic number 102,nobelium chemical element,element- any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter Adj.1.no- quantifier; used with either mass nouns or plural count...
(可能是用某些实验得出了一个元素的atomic number 结果找不到已知相应的元素 那么有可能就是发现了一种新元素 或者实验错误)讲的繁琐一点就是there have been atomic numbers[←我觉得应该要有s],and there's no known element for such atomic numbers.atomic number和element之间介词用for 在这个which的定语从句...
No is an element with the atomic number 102. 有所遗漏?报告错误或提出改进建议 WordReference English-Chinese Dictionary © 2024: 主要翻译 英语 中文 no adv (refusal) (表示拒绝) SC 不,不行,不好,不可以 bù,bù xíng ,bù hǎo ,bù kě yǐ TC 不,不行 No, I wouldn't like more coffee...
n.1.(Chem.)A supposed metal alleged to have been discovered in 1845 by the Swedish chemist Swanberg in zircon. After many unsuccessful attempts to verify this new element, the element namedHafnium(atomic number 72) was discoverd in 1923 by D. Coster and G. von Hevesey in the zirconium-...
Fermi has produced a new element, of atomic number 93. The new element was found when uranium, atomic number 92, was bombarded with neutrons; it is radioactive, with a half-period of about 13 minutes. This announcement would appear to be a sequel to the experiments reported by Prof. ...
Hf, a chemical element in Group IV of the Mendeleev periodic system. Atomic number, 72; atomic weight, 178.49; a silvery-white metal. Natural hafnium consists of six stable isotopes with mass numbers 174 and 176-80. The existence of hafnium was predicted by D. I. Mendeleev in 1870. In ...
Merz-Kollman atomic radii used.Read replacement radii for each type of atom:Atom Element Radius 1...
Knowledge Check Question 1 - Select One An element having atomic number 17 and belongs to halogens is ___ ALi BF CK DClSubmit Question 2 - Select One An element having atomic number 17 and belongs to halogens is ___ ALi BF CK DClSubmit An atom...