百度试题 结果1 题目10 An isotope of element Y has 19 protons and 20 neutrons in its nucleus. Which is the symbol for the ion of Y? B2039A YB19192039C YD1919 相关知识点: 试题来源: 解析 B 反馈 收藏
a有 但是 是坏的 But has is bad[translate] a也就是说铁元素原子核中的中子与质子要比其它所有元素原子核中的中子与质子靠近得更紧密,其中子与质子间的强相互作用力也最大,因而当其向同一个方向排列时,其也具有最大的磁场。 In other words, in the hard element atomic nucleus neutron and the proton ...
b. the number of neutrons in the nucleus of the atom. c. the number of electrons in the outer or Which of the following are formed elements: white blood cells, red blood cells, and/or platelets? From this neutral state, if the...
aIndividuals receiving bilateral training showed a reduction in movement time of the impaired limb and increased upper limb functional ability compared to individuals receiving unilateral training. 接受双边训练的个体显示了对被削弱的肢体的运动时间的减少并且增加了上部肢体功能能力与接受单边的训练的个体比较。[...
An atom is a neutral species that have the same number of protons and neutrons. When electrons are added or removed from an atom of an element, a charged species is formed known as ions. Answer and Explanation: Metals can lose electrons ...
Electrons gently tug on protons in the lattice, drawing them inward to create an excess of positive charge. That deformation, known as a phonon, can then draw in a second electron, forming a “Cooper pair.” Cooper pairs can all come together into a coherent quantum entity in a way that...
Helium atom has an atomic mass of 4 u and two protons in its nucleus. ... 03:14 Helium atom has an atomic mass of 4u and two protons in its nucleus. H... 01:12 Which element does not have any neutron in it ? 01:45 हाइड्रोजन के कौन स...
aThen, Rutherford himself proposed the orbital model for the atom, in which there was a central nucleus populated by positively charged particles – protons – and negatively charge particles – electrons – moving around the nucleus 正在翻译,请等待... [translate] ...