Normally, the number of electrons in an atom is equal to Z, making these atoms neutral in overall charge. Some atoms have different numbers of protons and electrons, resulting in a net positive or negative charge. These atoms are called ions. ...
What is the main component of the atomic mass in English? A. Protons B. Electrons C. Neutrons D. Protons and neutrons 相关知识点: 试题来源: 解析 D。本题考查原子质量的主要组成部分。质子和中子的质量较大,是原子质量的主要构成部分,电子质量很小可忽略。选项 A 仅提到质子,不全面。选项 B 电子...
Together, protons and electrons form an atom'snucleus. A proton has a positive charge that counters the electron's negative charge. When an atom has the same number of protons and electrons, it is in a neutral state. Electrons are unique from the other particles in multiple ways. They exis...
百度试题 结果1 题目6 An atom of element Q contains 19 electrons, 19 protons and 20 neutrons.What is Q? B A calcium B potassium C strontium D yttrium 相关知识点: 试题来源: 解析 B 反馈 收藏
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...
The two predominant sources of radiation exposure on the moon are galactic cosmic rays, charged particles like protons, neutrons, and electrons that are twice as prevalent at the lunar surface as they are in low Earth orbit, and space weather generated by activity on the sun. Developed by NASA...
What Are the Parts of an Atom? An atom has three types of very tiny particles called protons, neutrons and electrons. The center of an atom is called the nucleus, and it is made up of protons and neutrons. The electrons in an atom fly around and above the nucleus in a cloud-like fo...
What is the center of an atom called?Atoms:Atoms are the smallest indivisible working unit of matter. It is composed of three subatomic particles: neutrons, electrons, and protons. Neutrons are neutrally charged whereas electrons are negatively charged. Protons are the subatomic particles of an ...
Neutrinos, electrons, muons and taus make up a category of fundamental particles called leptons. Quarks and their quirkiness (Image credit: Karl Tate, Livescience.com Infographics Artist) Quarks, which make up protons and neutrons, are another type of fundamental particle. Together with the ...
After the invention of electrons and protons, it is confirmed that current moves from the negative to the positive end of the battery. But still, we are assuming the direction of current as of the conventional method. Who Invented DC Current?