百度试题 结果1 题目1 In which species are the numbers of protons, neutrons and electrons all different? B A (19)/9 F B Na C P D (32)/(16)S^2- 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 结果1 题目2 In which species are the numbers of protons, neutrons and electrons all different? D A _(13)^(27)Al B CL C S2 Dkt 相关知识点: 试题来源: 解析 D 反馈 收藏
百度试题 结果1 题目Protons and neutrons are known as___ A) Electrons B) Neutrinos C) Nucleons D) Quarks 相关知识点: 试题来源: 解析 C 反馈 收藏
2.how does the number of electrons relate to the arrangement ?what is the different in the number of electrons in a 3rd period element and the 2nd period element above it?3.do some elements next to each other have the same number of neutrons?how is that possible?4.how are the colors ...
百度试题 题目Atoms are made from even smaller particles. They are Protons, Neutrons and Electrons. A.正确B.错误相关知识点: 试题来源: 解析 A 反馈 收藏
Electrons form a spinning cloud around the nucleus. Protons and neutrons make up the mass of atoms. Electrons, miniscule compared to the protons and neutrons, contribute very little to the overall mass of atoms.Atoms and Isotopes Atoms of the same element have the same number of protons. All...
If an atom were about as big as a baseball stadium, the nucleus would be the size of a pea in the very center and the electrons would be somewhere on the outside edge.What makes an atom of gold different from an atom of iron is the number of protons, neutrons, and electrons inside...
aヤバ [yaba) [translate] a房屋土地资管理局 House land capital administrative bureau [translate] aAtoms are made of smaller particle,called electrons,proton,and neutrons 原子由更小的颗粒制成,叫电子、氢核和中子 [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...
2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period element above it?3.do some elements next to each other have the same number of neutrons?how is that possible?4.how are the colors ...
Atoms consist of protons, which carry a positive electrical charge; electrons, which carry a negative charge; and neutrons, which carry no charge. Thus in an ordinary, electrically neutral atom, the number of protons and the number of electrons is equal. ...