BEIJING, Feb. 22 (Xinhua) -- Chinese researchers have synthesized two new nucleus isotopes that contain 84 neutrons and 82 neutrons, according to a recent research article published in the journal Physical Review Letters. The nucleus is composed of protons and neutrons. Different numbers of protons...
· Nucleus components - Whereas the atomic nucleus consists of protons and neutrons, the cellular nucleus contains the nucleolus, nucleoplasm, and chromatin· Nuclear membrane - Cellular nucleus has a nuclear membrane that acts as the barrier between the internal and external parts of the nucleus. ...
1 :a usually round part of most cells that is enclosed in a double membrane, controls the activities of the cell, and contains the chromosomes. 2 : the central part of an atom that comprises nearly all of the atomic mass and that consists of protons and neutrons. What is an example of...
题目 The nucleus of the atom is composed of swiftly moving protons and neutrons that are___together by very strong forces. (A) mixed (B) propelled推进(C) pounded打击(D)bound 相关知识点: 试题来源: 解析 held 反馈 收藏
An atom contains protons, neutrons, andelectrons. The nucleus of an atom consists of bound protons and neutrons (nucleons). The negatively charged electrons are attracted to the positively charged protons and fall around the nucleus, much like a satellite is attracted to the gravity of the Earth...
(原子)核 the central part of an atom, consisting of protons and neutrons · C 2. 中心,核心 central part, around which other parts are grouped or collected · 句型例句 The nucleus of an atom consists of neutrons, protons and other particles.原子核 由中子、质子和其他粒子构成。 Many people ...
1. Chemistry The positively charged central region of an atom, composed of protons and neutrons and containing most of the mass of the atom. See more at atom. 2. Biology The structure in the cytoplasm of a living cell that contains the cell's DNA and controls its metabolism, growth, and...
At the centre of every atom is the atomic nucleus. The nucleus consists of particles calledprotonsand neutrons(collectively callednucleons) and contains almost all of the atom's mass, but is extremely tiny, with a diameter of about 10^-15 metres (0.000 000 000 000 001 m) or one femtomet...
Nuclear physics and basic technology British Electricity International, in Nuclear Power Generation (Third Edition), 1992 1.4.1 Unstable nuclei Figure 1.2 gives the combinations of protons and neutrons that are found to be stable nuclei. This information may also be presented as an area of stability...
The interaction in the nucleus of protons and neutronsTysinyuk Nikolai Maksimovich