The antonym of “atom” is ___. A. molecule B. particle C. compound D. element 相关知识点: 试题来源: 解析 C。“atom”意为“原子”,“compound”意为“化合物”,与“atom”相对。“molecule”分子;“particle”粒子;“element”元素,都不是“atom”的反义词。反馈...
Carbon dioxide is a colorless gas that exists in our atmosphere. It is a naturally-occurring compound composed of one carbon atom and two oxygen atoms.
49. A molecule of water is made up of two atoms of hydrogen and one atom of oxygen.(改为同义句) A molecule of water two atoms of hydrogen and one atom of oxygen 相关知识点: 试题来源: 解析 【答案】consistsof【核心短语/词汇】bemadeupof 由...组成【翻译】一个水分子是由两个氢原子和...
Diatomic molecules are when only two atoms combine. An example of adiatomic moleculeis carbon monoxide (CO) made of a single atom of carbon and one of oxygen. If the two atoms are the same element, it is called ahomonuclear diatomic molecule, such as oxygen (O2) and nitrogen (N2).Poly...
The atomic weight of an atom, or the molecular weight of a molecule, is its mass relative to that ofa___ atom. This is essentially equal to the number of protons plus neutrons that the atom or molecule contains. A oxygen B hydrogen C helium D carbon 相关知识点: 试题来源: 解析 B ...
百度试题 结果1 题目The water molecule is made up of two___ (氢)atoms and one___ (氧)atom.相关知识点: 试题来源: 解析 marched 反馈 收藏
百度试题 结果1 题目The water molecule is made of two hydrogen atoms and one o___ atom.相关知识点: 试题来源: 解析 oxygen 反馈 收藏
5 Atom X is the central atom in a molecule.In this molecule, atom X has four pairs of valence electrons in its outer shell.The four pairs of valence electrons include at least one bond pair and at least one lone pair.What could be a possible shape for the molecule? C A linear B no...
Examples of molecules: Dioxygen molecule has 2 oxygen atoms bonded together. Water molecule has 2 hydrogen atoms and 1 oxygen atom bonded together. Carbon Dioxide molecule has has 1 carbon atom and 2 oxygen atoms bonded together. Table of ContentsAbout This Book...
London Force: Instantaneous dipole creation that affects the electronegativity between atoms. It is considered a weak intermolecular attractive force. Answer and Explanation:1 The oxygen molecule, O2, contains two identical atoms, and as a result, there is no difference in electronegativity across the...