17. A nucleus(原子核) is about ____ of anatom(原子).A. one million the size B. one millionth thesize 相关知识点: 试题来源: 解析 B(分数/倍数)+the size of +n.one millionth 表示分数,百万分之一原子核大小大约是原子的百万分之一反馈 收藏
What determines the size of a pinhole camera image? View Solution If the size of a nucleus (≈10−15m) is scaled up to the tip of a sharp pin (≈10−5m), what roughly is the size of an atom? View Solution A : Universe is expanding R : There is red shift in the spectra ...
The nucleus is a part of an atom and is composed of neutral particles called neutrons and positively charged particles called protons. The nucleus is...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...
The Greek philosopher Democritus suggested that matter was made ofminute, round particles that he called 'atoms'. JJ Thomson discovered thatatomscould be split further into smaller parts and extractedelectronsfrom these. Experiments since have revealed that thenucleusof an atom is made up ofprotonsan...
We touch on the 'proton radius puzzle' that has incited a great deal of interest in high-resolution spectroscopy of the most fundamental atoms. We find that for an absolute value of the size of the helium nucleus, the theoretical advance that will give a new determination is just around ...
Ask a question Search AnswersLearn more about this topic: Atomic Nucleus | Definition & Structure from Chapter 22 / Lesson 3 118K Learn the definition of the nucleus of an atom. Learn about the particles found in the nucleus and the structure of an atom. Discover the charge of the nu...
The environment within the nucleus of a singleatomseems similar, with protons and neutrons also dancing about. But because the nucleus is such a compact space, scientists have struggled to pin down the behavior of these particles, known as nucleons, in an atom’s nucle...
1 He began to write poems in his thirties.问:最后为什么用thirties而不用thirty?2 When he moved to England in the fifties,he was already in his forties.问:为什么fifty和forty都用复数?3 A nucleus is about one millionth the size of an atom.问:为什么用millionth而不用million? 扫码下载作业帮搜索...
Nucleus:The major mass of the atom is concentrated in a very small region known as the nucleus. The nucleus comprises neutrons and protons. Therefore, they are termed nucleons.Answer and Explanation: In a molecular system, the reactant molecules are in rapid random ...
Create an account Ask a question Our experts can answer your tough homework and study questions. Ask a question Search AnswersLearn more about this topic: Atomic Nucleus | Definition & Structure from Chapter 22 / Lesson ...