An atom is made up of ___. A. protons, neutrons and electrons B. protons and neutrons only C. neutrons and electrons only D. protons and E. lectrons only 相关知识点: 试题来源: 解析 A。原子由质子、中子和电子组成。选项 B、C、D 都不完整。反馈...
B.WrongC.Not mentioned 相关知识点: 试题来源: 解析 B解析:这句话是错的,答案在第二段第二句:An atom of ordinary carbon,called carbon-12,has six protons(质子) and six neutrons(中子) in its nucleus.…普通的碳原子有6个中子。反馈 收藏 ...
Describe the structure of an atom.An atom consists of a nucleus, which contains protons and neutrons, surrounded by electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. The number of protons determines
5 An atom Y has 17 protons and 18 neutrons.Which of the symbols represent the atom for Y element?Satu atom Y mempunyai 17 proton dan 18 neutron.Antara berikut yang manakah merupakan symbol mewakili atom bagi unsur Y? C1817A YB YT1835C D35Y Y1718 相关知识点: 试题来源: 解析 C ...
Virtually all the mass of an atom resides in its nucleus, according toChemistry LibreTexts. The protons and neutrons that make up the nucleus are approximately the same mass (the proton is slightly less) and have the same angular momentum, or spin. ...
All atoms of a particular element possess the same number of protons, known as the atomic number. There are two general processes by which an atom can lose protons. Since an element is defined by the number of protons in its atoms, when an atom loses protons, it becomes a different ...
An atom that has more protons than electrons is called a cation. Ions are charged atoms or combinations of atoms. When an atom loses one or more...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...
A neutral atom has the same number of protons and electrons (charges cancel each other out). An ion has an unequal number of protons and electrons. If the charge is positive, there are more protons than electrons. If the charge is negative, electrons are in excess. ...
百度试题 结果1 题目 The nucleus of an atom is composed of swiftly moving protons and neutrons that are___together by very strong forces. 相关知识点: 试题来源: 解析 held 反馈 收藏
Explore an atom's interior to discover the layout of its nucleus, protons, and electrons. Encyclopædia Britannica, Inc. A simplified look into the structure of an atom Understand matter based on the Pauli exclusion principle Learn about magnetic fields and the levels of particles, atoms...