原子质量表(talbe of atomic masses)
Atomic number and mass number：原子数和质量数 AtomsandElements TheAtomAtomicNumberandMass NumberIsotopes LecturePLUSTimberlake 1 AtomicTheory AtomsarebuildingblocksofelementsSimilaratomsineachelementDifferentfromatomsofotherelementsTwoormoredifferentatomsbondin simpleratiostoformcompounds LecturePLUSTimberlake 2 Subat...
ParticleElectronSymboleCharge1RelativeMass0Location outsidenucleus ProtonNeutron p+n +0 11 nucleus nucleus LecturePLUSTimberlake 3 LocationofSubatomicParticles electrons protons nucleus neutrons LecturePLUSTimberlake 4 AtomicNumber Countsthenumberofprotonsinanatom LecturePLUSTimberlake5 AtomicNumberonthePeriodicTabl...
Atomic number and mass number：原子数和质量数共24页文档 AtomsandElements TheAtomAtomicNumberandMass NumberIsotopes LecturePLUSTimberlake 1 AtomicTheory AtomsarebuildingblocksofelementsSimilaratomsineachelementDifferentfromatomsofotherelementsTwoormoredifferentatomsbondin simpleratiostoformcompounds L...
The atomic number of an element is determined by the number of protons in it, and it is used to differentiate one element from another. The mass number of an element is determined by the number of protons and neutrons combined. The modern periodic table is arranged in such a way that all...
PLUSTimberlake6 AtomicNumberonthePeriodicAtomicNumberonthePeriodic TableTable 1111 NaNa AtomicNumber Symbol LecturePLUSTimberlake7 AllatomsofanelementhaveAllatomsofanelementhave thesamenumberofprotonsthesamenumberofprotons 1111 NaNa 11protons Sodium LecturePLUSTimberlake8 LearningCheckLearningCheck Statethenumberof...
AtomsandElements TheAtomAtomicNumberandMass NumberIsotopes LecturePLUSTimberlake 1 AtomicTheory AtomsarebuildingblocksofelementsSimilaratomsineachelementDifferentfromatomsofotherelementsTwoormoredifferentatomsbondin simpleratiostoformcompounds LecturePLUSTimberlake 2 SubatomicParticles ParticleElectron Symbo...
ATOMIC WEIGHTS OF THE ELEMENTS 2007 These tables are based on the 2007 table at Pure Appl. Chem., 81, 2131-2156 (2009) with changes to the values for lutetium, molybdenum, nickel, ytterbium and zinc from the 2005 table. Mass number of the longest-lived isotope of hassium from Phys. Rev...
interactive periodic table atomic mass of first 30 elements given below is a table that lists the first 30 elements based on atomic number and their corresponding atomic mass. atomic number element atomic mass 1 hydrogen 1.008 2 helium 4.0026 3 lithium 6.94 4 beryllium 9.0122 5 boron 10.81 6 ...