Among these elements, which non - metal is a diatomic molecule in nature? 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。
shared between atoms, there is a partial transfer of electron density from one atom to the other. When two atoms have different electronegativities, partial ionic charges arise due to the unequal share of electrons. Because of this, the molecule tends to have a dipole mo...
百度试题 结果1 题目Which of these correctly illustrates the building blocks of a starch molecule?相关知识点: 试题来源: 解析 IV only 反馈 收藏
Which of the following have a linear structure? 07:05 Which of the following compound (s) is/are non-polar? 09:19 Non-polar molecule are: 02:26 Which of the following molecule species is/are having pi(2p) as H.O.M... 04:49 Correct order of b.p.t is /are: 04:56 Incorrect...
a我叫汪如强 My name am Wang Ruqiang[translate] a直到前天才接到她的电话 Only then received her telephone until the day before yesterday[translate] athe primary structure of a molecule is simply a list of its component amino acids in the order in which they occur 分子的一级结构简单地是它的...
ait is not present on the pCC neurons .By hour 11 ,however, other neurons express this cell surface molecule. 它不是存在pCC神经元。在小时11以前,然而,其他神经元表达这个细胞表面分子。[translate] aA lot of things can not control, even lonely again lonely still have to go.Not allowed to stop...
The SB molecules is an Ia-like molecule: Evidence from studies of the monoclonal antibody ILR1 which recognizes a supratypic specificity on the SB gene productA monoclonal antibody. H39-49.5, originally raised against the murine I-Ak antigen, recognizes a nonpolymorphic determinant on HLA-DR-...
Which of these cells would be involved in specific resistance? A) basophil B) lymphocyte C) Monocyte D) Neutrophil E) Eosinophil Specific resistance: Specific resistance is the phenomena in which there is a designated pathway for every par...
If a molecule A yields a fluorescent excited state A* that is partially quenched by an added material Q, then a simple kinetic analysis of the quenching data will reveal the second-order quenching constant as follows. Consider the reaction scheme: (29)RateA→hvA*Ia (30)A*→kFA+hυFkF[A...
The recent syntheses of complexes involving some small molecules in opened fullerenes and those of hydrogen molecule(s) in C60 and C70 are accompanied in the literature by numerous computations for endohedral fullerene complexes which cope with the problem of the stability of these complexes. In this...