IB DP Chemistry: HL復習筆記2.1.5 Emission Spectra
Emission Spectra Electrons move rapidly around the nucleus in energy shells If their energy is increased, then they can jump to a higher energy level The process is reversible, so electrons can ret...
IB DP Chemistry: HL復習筆記2.1.4 The Electromagnetic Spectrum
The Electromagnetic Spectrum The?electromagnetic spectrum?is a range of?frequencies?that covers all electromagnetic radiation and their respective?wavelengths?and?energy It is divided into bands or...
IB DP Chemistry: HL復習筆記2.1.3 Relative Atomic Mass Calculations
Relative Atomic Mass Calculations Isotopes?are different atoms of the?same?element?that contain the?same number of protons?and electrons but a?different number of neutrons These are atoms of the sa...
IB DP Chemistry: HL復習筆記2.1.2 Deducing Subatomic Particles
Atoms: Key Terms The?atomic number?(or?proton number) is the number of protons in the nucleus of an atom and has the?symbol?Z The atomic number is also equal to the number of electrons that are pre...
IB DP Chemistry: HL復習筆記2.1.1 The Nuclear Atom
Mass & Charge Distribution The mass of an atom is?concentrated?in the nucleus, because the nucleus contains the heaviest subatomic particles (the neutrons and protons) The mass of the electron ...
IB DP Chemistry: HL復習筆記1.2.9 Titrations
Titrations Volumetric analysis?is a process that uses the volume and concentration of one chemical reactant (a standard solution) to determine the concentration of another unknown solution The tech...
疫情下中國學生IBDP大考成績有何變化？
疫情下中國學生IB DP大考成績有何變化？ 近日，IBO官網公布了全球173878名學生在今年5月份進行的IB考試成績，這其中包含IBDP（高中文憑課程）和IBCP（職業教育）兩種課程。資料顯示，今年IB DP全球平均分31.98分...
IB DP Chemistry: HL復習筆記1.2.8 Concentration Calculations
Concentration Calculations Step by step Concentration calculations involve bringing together the skills and knowledge you have acquired previously and applying them to problem solving You should be...
IB DP Chemistry: HL復習筆記1.2.7 Standard Solutions
Concentrations of Solutions Standard solutions Chemists routinely prepare solutions needed for analysis, whose concentrations are known precisely These solutions are termed?standard solutions They ...
