“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...
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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...
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 ...
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NumberIsotopes LecturePLUSTimberlake 1 AtomicTheory AtomsarebuildingblocksofelementsSimilaratomsineachelementDifferentfromatomsofotherelementsTwoormoredifferentatomsbondin simpleratiostoformcompounds LecturePLUSTimberlake 2 SubatomicParticles ParticleElectron Symbole- Charge1- RelativeMass 0 Location out...
atomic number7 atomic weight14.0067 melting point−209.86 °C (−345.8 °F) boiling point−195.8 °C (−320.4 °F) density (1 atm, 0° C)1.2506 grams/litre usual oxidation states−3, +3, +5 electron configuration1s22s22p3
4.01.1Introduction 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 ofatomi...
Thequantum numberthat distinguishes orbitals of givennhaving different shapes. This can be any interger value from 0 ton-1. Dictionary Navigation Absolute Error - Atomic Mass Unit Dictionary Index BACT - Boiling Point Please Share/Save This Page ...