of protons and neutrons in the nucleus. An electron carries a single negative charge. If an atom of an element is to have zero charge, it must have the same number of electrons as protons. These electrons are arranged in orbits around the nucleus of the atom like the layers of an anion...
Atoms are made from a nucleus of protons and neutrons and a cloud of electrons.A. 正确B
Atoms are composed of protons, neutrons, and electrons, whose properties are shown below: particlemass, gmass, uchargesymbol electron9.1093897 × 10–285.48579903 × 10–41––10e proton1.6726231 × 10–241.0072764701+11H+,11p neutron1.6749286 × 10–241.008664904001n ...
Atomic Particles Atoms are made of protons, neutrons and electrons 99.999999999999% of the atom is empty space Electrons have locations desc
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
Atoms are composed of three main subatomic particles: protons, neutrons, and electrons. Protons and neutrons are grouped together in the nucleus of an atom, while electrons orbit about the nucleus. Exercises Exercises Which is smaller—an electron or a helium atom? Which is larger—a proton or...
Because all atoms are neutral, the number of protons and electrons in an atom must be equal. 因为所有的原子都是电中性的,因此质子数与电子数一定是相等的。 figure 4.15-0 Thus, once you know the atomic number of an element, you know the number of protons and the number of electrons an ato...
a我的生日是周一 My birthday is Monday[translate] a流动性大 The fluidity is big[translate] aProtons and electrons are parts of atoms that make up all things in our world 氢核和电子是在我们的世界组成所有事原子的一部分[translate]
2 (a)The table below gives the number of protons, neutrons and electrons in atoms or ions.Complete the table. The first line is given as an example.You will need to use the Periodic Table.number of particle number of number of symbol or protons ele ctrons neutrons formula A445Be B19182...
(b)The table shows the number of protons, neutrons and electrons in some atoms or ions.Complete the table. The first line is given as an example.number of number of number of symbol or particle protons electrons neutrons formula A666C B1212121/1∴|i|C8108(16)/8O^(2-) D111013 相关...