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
If an atom contains 14 protons, it is an atom of which element? Which element has 32 protons in its nucleus? If an atom with a mass number of 202 has 122 neutrons, it is an atom of which element? What chemical element has 4 protons?
An atom consists of a nucleus, which contains protons and neutrons, surrounded by electrons. The number of protons determines the element of the atom, while the number of neutrons can vary. Electrons exist in energy levels or shells around the nucleus. 开学特惠 开通会员专享超值优惠 助力考试高...
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 ...
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。[...
What is the maximum number of electrons in the n = 2 energy level? What is the ground-state electron configuration of co? What chemical element has 35 protons and 36 electrons? Which element has the lowest ionization energy? What is the electron configuration of calcium...
Which subatomic particles are found in the nucleus of an atom of beryllium? Which atom has 4 protons, 5 neutrons, and 2 electrons? What is its charge and atomic mass? What is the smallest particle of an elemental substance that exhibits the properties of...
Q14) Which entry in the table below describes the daughter nucleus when 3 1 1 4 S i decays by - emission? number of protons number of neutrons 1) 15 16 2) 15 31 3) 13 17 4) 13 18 5) 14 30 Q15) An element emits 1 alpha particle, 1 + particle, and 3 - particles. Its ...
What element with a mass number of 100 has 56 neutrons in its nucleus? What is the mass number of the isotope lithium-7? What is relative abundance of isotopes? What is the atomic number of a neutron? What is a stable isotope?
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]...