What is the atomic number of oxygen?A、2B、6C、8D、20Answer:C科目四考试网___科目四考试题库
The atomic number of oxygen is 8. This means that an atom of oxygen, regardless of the isotope, will have exactly 8 protons in its nucleus. The...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
If an atom with a mass number of 202 has 122 neutrons, it is an atom of which element? What is the difference between an atom and an element? The atomic number of oxygen is 8. What is the mass number of an oxygen atom with 7 neutrons?
【题目】Theatomicweightofoxygenis___than___ofthehydrogen. A.15timesheavier;that B.15timesheavier:those C.16timesasheavier;that D.16timesasheavy;those 试题答案 在线课程 【答案】A 【解析】 试题分析:考查倍数表达法。句意:氧原子是氢原子重量的16倍。is16timeshavier是倍数表达法,that代指weight,可知...
D Atomic Number8Symbol→O16.00Atomic Mass Oxygen Name PERIODIC TABLE OF THE ELEMENTS If you are looking to get a better understanding of the world around you, chemistry is the perfect subject to study. It's a study of matter (物质), its properties—ways in which it behaves in special con...
Related to atomic number 10: atomic number 100 ThesaurusAntonymsRelated WordsSynonymsLegend: Switch to new thesaurus Noun 1. atomic number 10 - a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts Ne,...
were sufficient to prevent a complete displacement of the oxygen theory, and instead the two incompatibleacidifyingprincipleslived an uneasy coexistence in the textbooks of the period under the categories of oxyacids and hydracids. 然而,所有公认的思想所具有的自然惰性和贝采利乌斯的巨大影响足以阻止氧理论...
百度试题 结果1 题目1.4. Which one of the following elements has the smallest atomic number A A Oxygen B Carbon C Aluminium DPotassium 相关知识点: 试题来源: 解析 A 反馈 收藏
The mass number of an atom is the total number of protons and neutrons contained within the nucleus of the atom. The number of protons determines the element and will always equal the atomic number of that element. The number of neutrons can change and will determine which isotope of that ...
Atomic oxygen refers to individual oxygen atoms, highly reactive and rare on Earth's surface, while molecular oxygen (O2) is a stable diatomic molecule, essential for respiration and common in Earth's atmosphere.