“atomic number"的含义和定义 (chemistry) The number, equal to the number of protons in an atom that determines its chemical properties. Symbol: Z noun (physics, chemistry) The number, equal to the number of protons in an atom that determines its chemical properties. Symbol: Z number ...
Boron: Semimetallic chemical element, chemical symbol B,atomic number5. 硼: 半金属的化学元素, 化学符号b, 原子序数5. 期刊摘选 展开全部 英英释义 Noun 1. the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral...
atomic number 例句 1.Iron: Metallic chemical element, one of the transition elements, chemical symbol Fe, atomic number 26. 铁: 金属化学元素, 为过渡元素的一种, 化学符号Fe, 原子序数26. 2.Even the rarest rare earth, thulium, with atomic number 69, is 125 times more common than gold. ...
美 英 na.【化】原子序数 网络原子数;原子序号;原子量 复数:atomic numbers 权威英汉双解 英汉 英英 网络释义 atomic-number n. 1. 原子序数(指原子在元素周期表中的序号)the number of protons in the nucleus (= centre) of an atom, which is characteristic of a chemical element. Elements are placed...
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It is convenient to describe the composition of an atom in terms of the number of protons and neutrons in its nucleus (Figure 1 ). The term atomic number , conventionally denoted by the symbol Z , indicates number of protons present in the nucleus of an atom, which is also equal to ...
NumberIsotopes LecturePLUSTimberlake 1 AtomicTheory AtomsarebuildingblocksofelementsSimilaratomsineachelementDifferentfromatomsofotherelementsTwoormoredifferentatomsbondin simpleratiostoformcompounds LecturePLUSTimberlake 2 SubatomicParticles ParticleElectron Symbole- Charge1- RelativeMass 0 Location out...
4.01.1 Introduction Hydrogen is a chemical element with the symbol H and atomic number 1 (strictly 1.008). It is the lightest element in the periodic table and the most abundant chemical substance in the Universe, constituting approximately 75% of all baryonic mass. The universal emergence of ...
Noun1.atomic number 14- a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors Si,silicon ...
NumberIsotopes LecturePLUSTimberlake 1 AtomicTheory AtomsarebuildingblocksofelementsSimilaratomsineachelementDifferentfromatomsofotherelementsTwoormoredifferentatomsbondin simpleratiostoformcompounds LecturePLUSTimberlake 2 SubatomicParticles ParticleElectron Symbole- Charge1- RelativeMass 0 Location out...