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
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...
What is the atomic number of uranium-238? What is the atomic number of tin-119? What is the atomic number of beryllium-9? What is the atomic number of helium-4? What is the atomic number for uranium-235? What is the atomic number of oxygen-17?
The average atomic mass of oxygen is 15.999 AMU. This value rounds to 16, which indicates that oxygen-16 is the most abundant isotope of oxygen...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Our experts can answer your ...
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,...
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 ...
In 1803,John Daltonsuggested a way to express relative atomic mass in terms of hydrogen-1 (protium). Subsequently,Wilhelm Ostwaldsuggested expressing the relative atomic mass as one-sixteenth the mass ofoxygen. But, when isotopes and isotopic oxygen were discovered, it created confusion about how ...
Oxygen Basic Facts Atomic Number:8 Symbol:O Atomic Weight:15.9994 Discovered By:Credit for the discovery of oxygen is usually given to Carl Wilhelm Scheele. However, there is evidence credit should be given to the Polish alchemist and physician Michael Sendivogius. Sendivogius' 1604 workDe Lapid...
We will then find the ratio of these quantities. Step 1: Calculate the number of moles of ozone (O₃)- Given: Mass of ozone = 16.0 g- Molar mass of ozone (O₃) = 3 × atomic mass of oxygen = 3 × 16 g/mol = 48 g/mol- Number of moles of O₃ (n) = mass / molar...