The electrons and protons themselves,however,are only crude first approximations,a way of collecting into a bundle either trains of waves or the statistical probabilities of various different kinds of events. 相关知识点: 试题来源: 解析 然而电子和质子仅仅是粗略的一次近似,这是一种将列波或者不同...
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
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
题目5 Which statements comparing the properties of electrons, neutrons and protons are correct?B neutrons and protons are only electrons and both heavier than electrons neutrons are charged AB CD X 相关知识点: 试题来源: 解析 B 反馈 收藏
Atoms are made from a nucleus of protons and neutrons and a cloud of electrons.A. 正确B
In chemistry, the indication of the total number of protons present in the nucleus of one atom of a chemical element is usually done by their atomic number. The position of the chemical element in the periodic table is also represented by its atomic number...
Atomic Particles Atoms are made of protons, neutrons and electrons 99.999999999999% of the atom is empty space Electrons have locations desc
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...
mass and can occupy a volume. With this definition of matter, one example of matter is chair since it has a mass and occupies a volume. One characteristic of a matter is that it is made up of atoms and subatomic particles. The subatomic particles are the protons, neutrons, and electrons...
An ion is an electrically charged species that differ in the number of electrons and protons. If the number of protons is more than electrons, a cation is formed which is positively charged. If the number of electrons is more than the number of protons, a negatively charged anion is...