A. The number of protons B. The number of neutrons C. The number of electrons D. The sum of protons and neutrons 相关知识点: 试题来源: 解析 A。原子序数由质子数决定。选项 A 正确,原子序数等于质子数。选项 B 中子数不能决定原子序数。选项 C 电子数在原子呈电中性时等于质子数,但不是决定原...
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...
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Mass The mass of an individual proton is 1.672621636(83)í–10 (-27) kg. The collective mass of the protons in the nucleus of an atom is roughly the same as the mass of all the neutrons. Of all the weight of an atom, more than 99 percent of the mass is contained in the nucleus;...
The Multiverse theory state that in addition to our universe, there could be an inifinite number of other parallel/alternate universes. Many Worlds theory is the one we are most familiar with, where in our universe, we turn left and, in the other, right
Protons are the subatomic particles of an atom that are positively charged.Answer and Explanation: The center of an atom is called nucleus. Nucleus was discovered by Ernest Rutherford and his students through an experiment termed the gold foil......
Both the protons and neutrons reside in the nucleus. Protons have a postive (+) charge, neutrons have no charge --they are neutral. Electrons reside in orbitals around the nucleus. They have a negative charge (-). It is the number of protons that determines the atomic number, e.g., H...
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...
aDear, this is you 正在翻译,请等待...[translate] aIt is suggested that protons compete with Na+ on its binding site; however, the proton binding is not productive and is unable to drive GABA uptake. 它被建议氢核与Na+在它的束缚位置竞争; 然而,氢核捆绑不是有生产力的并且无法驾驶GABA举起。
What are the parts of an atom?Most atoms have three different subatomic particles inside them: protons, neutrons, and electrons. The protons and neutrons are packed together into the center of the atom (which is called the nucleus) and the electrons, which are very much smaller, whizz around...