Curated OER
Patterns in Electron Configuration
A periodic table of elements and ten accompanying questions comprise this chemistry handout. Learners survey the table to discover the relationship between group columns and valence electrons. They also associate energy levels to the...
Curated OER
Periodic Trends
Thorough explanations of the trends in the periodic table of elements make up the majority of this handout. Atomic and ionic size, ionization energy, electron affinity, and electronegativity are presented before giving chemistry...