An atom with a mass number of 196 has 40 fewer protons than nuetrons.Find the atomic number and the identity of this atom.算出来 结果是Pt 铂元素、 原子序数是78.the identity of this atom 这种原子的特性 是什么、?应该从哪

An atom with a mass number of 196 has 40 fewer protons than nuetrons.Find the atomic number and the identity of this atom.算出来 结果是Pt 铂元素、 原子序数是78.the identity of this atom 这种原子的特性 是什么、?应该从哪 100分求一道物理题 If the mass of a hydrogen atom is 1.67*10^-27kg and the mass of an electron is 9.1*10^-31kg,how many electrons would be required to have a mass equivalent to one hydrogen atom? CHEMISTRY-RELATIVE ATOMIC MASSthe mass of a hydrogen atom 1/1H is equal to 1/12 of the mass of a carbon-12 atom,so its relative isotopic mass is 1.A magnesium atom 24/12Mg is twice as heavy as a carbon-12 atom,so its relative isotopic mass is 24再 what is the mass number of an atom that has 28 neutrons?请在5月24号之前回答 I'm an atom in a sea of nothing是什么意思 A story about atom.(A day in the life of an atom)全英文,文章,不是题目翻译 翻译：A neutron is a nuclear particle with an atomic mass of 2.0 and a neutral electrical charge. a mass 关于无机化学共价键于分子结构判断题8 A pai bond restricts rotation about the sigma bond axis 9.An s orbital (or Px) on one atom cannot form a sigma bond by overlap with Py or Pz orbital on another atom px轨道电子可以和PY轨道电子成sigma键么An s orbital(or px)on one atom cannot form a sigma bond by overlap with a py or pz orbital on another atom.这句话对么?我咋觉得这么矛盾啊. Please translate the sentence belowWhen a neutrino interacts with a particle in an atom of seawater,the result is a cascade of electrically charged particles.Thank you for your attention.:) The relative atomic mass scale makes it possible to know how many atoms of an element are element接上面 are present in a sample of the element with a measurable mass.这句话的句子成分怎么划分啊? 英语翻译In its monolayer form,graphene is a one-atom-thick two-dimensional material with excellent electrical,mechanical,and thermal properties.Large-scale production of high-quality graphene is attracting an increasing amount of attention.Chemic van der Waals interaction 范德瓦尔斯交互作用的解释van der Waals interaction:the distribution of electronic charge around an atom changes with time (i.e.transient asymmetry ),which acts through electrostatic interactions to induce a comple 英语翻译GC–MSGC–MS was performed with an Agilent(Avondale,PA,USA) 6890N GC,equipped with a programmed-temperaturevaporizer (PTV) and an Agilent7683 autoinjector,coupled to an Agilent5973 mass-selective detector.MS withelectron-impact (EI) ion Chemistry Scavenger Hunt 紧急!* 0.30 mol of sodium carbonate.* A metalloid.* A hydrocarbon with molecular mass > 100.* 2-propanol.* a polymer of vinyl chloride.* an acid-base indicator other than cabbage extract.* an oxide of a transition element.* A particle,rest mass m,moves with a certain speed.After totally inelastic collision with an identical particle at rest,a new particle,with rest mass M,is produced.The kinetic energy of original particle is 一个粒子的静质量是m,以一定的速 英语翻译Because of the uncertainty with regard to the exact location of an electron in an atom,at any particular time.在这里regard to 和理解.翻译!