The nucleus ___ a positive electrical charge which ___ of greatest importance as it determines the chemical nature of atom. A. carries… are B. carries… is C. carry… are D. carry… is 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
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Explore the Materials——From an Atom to a Device(走进材料——从原子到器件)(北京航空航天大学) 大学MOOC慕课 客观题答案 The basic unit of materials is___, which can bond directly together to form materials, or convert into ions, or assemble into molecules. A. nucleus B. electron C. proton...
11. The independent particle model of the nucleus is able to explain the origin o f these magic numbers, a strong point in its favor. 12. When the applied force is less than F, the frictional force always equals the applied force. Otherwise, since F acts in the opposite direction to ...
regions. Most of the 1 million nerve axons of the RGCs pass via the optic nerve to their respective lateral geniculate nucleus (LGN), located within the thalamus. The LGN is a layered structure and each part receives axons from specific ganglion cell types. A degree of visual processing is...
According to modern atomic theory, the nucleus of an atom has a positive charge because of its protons, and in the normal atom there are enough extranuclear electrons to balance the nuclear charge so that the normal atom as a whole is neutral. Generally, when the word charge is used in ...
A selection of cells in a part of the brainstem called the pedunculopontine nucleus (PPN) could be responsible for this 'freeze frame' effect. The discovery not only helps us map the location of tissues that contribute to the more zen-like properties of the human mind, it could help us ...
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