By EMILIANA OSPINA SÁNCHEZ - Alumno

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Chemestry HL

S
S1.1.2 States of matter and changes of state
S1.2.1 Atomic structure
S3.1.3b Periodicity and trends in properties
S3.1.2 Period number and outer main electron energy level
A
S1.1.1a Elements, compounds and mixtures
S3.1.1 The periodic table
S1.2.3 Mass spectra and relative atomic mass
S1.1.1b Separation techniques
S1.1.3 Temperature and kinetic energy
B
S3.1.5 Metallic and non-metallic properties as a continuum
S1.3.1 Emission spectra and electron energy levels
S3.1.6 Oxidation state
S3.1.8 Transition elements and incomplete d-sublevels
C
S1.3.2 The line emission spectrum of hydrogen
S1.3.5 Atomic orbitals and electron configuration
S1.3.7 Successive ionisation energies and electron configuration
S3.1.7 First ionisation energies across a period
D
S1.3.3 Electron main energy levels + S1.3.4 Electron sublevels
S3.1.4 Trends in properties down a group
E
S1.2.2 Isotopes
S1.2.3 Mass spectra and relative atomic mass
S3.1.3a Periodicity and trends in properties
S3.1.9 Transition elements and variable oxidation state
S3.1.10 Transition element complexes and colour
EMILIANA OSPINA SÁNCHEZ - Alumno
EMILIANA OSPINA SÁNCHEZ - Alumno
Created Feb 27, 2026
Dive into the foundational concepts of Chemistry HL! This tier list ranks essential topics, from the building blocks of matter like elements, compounds, and mixtures (S1.1.1a) to the intricate world of atomic structure (S1.2.1) and electron configurations (S1.3.5). Explore the compelling trends of the periodic table (S3.1.1), including metallic and non-metallic properties (S3.1.5) and the fascinating behavior of transition elements (S3.1.8, S3.1.9). Understand how isotopes (S1.2.2) are analyzed with mass spectrometry (S1.2.3) and grasp the energy dynamics behind states of matter (S1.1.2) and emission spectra (S1.3.1, S1.3.2). Prepare to master the core of chemical understanding.

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