百度试题 结果1 题目5 How many neutrons are present in the atom X? B A 21 B 24 C 45 D 66 相关知识点: 试题来源: 解析 B 反馈 收藏
What is a nucleus in nuclear physics? Where are neutrons located? What makes up the nucleus of an atom? How many quarks are there in a helium-4 nucleus? Does the number of neutrons change in alpha decay? How does a cyclotron produce protons?
[translate] aHow many neutrons are there in the nucleus of a Th-232 atom 多少个中子那里在Th232原子的中坚力量 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语翻译 荷兰语翻译 瑞典语翻译 希腊语翻译 51La ...
How many protons does argon have? What is the molar mass of argon? How many neutrons are in argon? What is potassium-argon dating used for? What state of matter is argon? What is the electronegativity of argon? What is tellurium used for?
Radioactive. Some atoms have too many neutrons in the nucleus, which makes them unstable. ... Ions. ... Antimatter. Are humans made of atoms? About 99 percent of your body is made upof atoms of hydrogen, carbon, nitrogen and oxygen. You also contain much smaller amounts of the other...
Is oxygen-18 an isotope? How many neutrons are in an atom of cobalt-60? How many isotopes does actinium have? How many nucleons are there in the sulfur-32 isotope? What is helium-4 isotope? How many neutrons are in californium?
It's not that simple though. An atom's properties can change considerably based on how many of each particle it has. If you change the number of protons, you wind up with a different element altogether. If you alter the number of neutrons in an atom, you wind up with an isotope. For...
One way an atom loses protons is through radioactive decay, which occurs when an atom has an unstable nucleus. The stability of a nucleus depends on the ratio of protons to neutrons. For smaller elements such as carbon and oxygen, the number of protons is roughly equal to the number of ...
molecules and ions. Atoms : In Chemistry atoms are the basic unit of particles. An atom contains a nucleus (consisting protons and neutrons) and some electrons moving around the nucleus. If o atoms have the same number of protons they are the same element. There are about 117 ...
An atom has an atomic number of 12 and a mass number of 25. how many neutrons does the atom have? How many atoms are in 54.6 g of nickel? How many atoms are in 3.5 moles of arsenic? How many atoms of C are present in 58.6 g of C_6H_6?