National Science Teachers Association
Monovalent Polyvalent
Which compounds have only one valence bond, and which have two? Chemistry classes sort cards into groups of monovalent and polyvalent piles, according to their bonds. There are 20 cards to identify; half of them name the compound, while...
Curated OER
The Nature of Molecules
Even though the questions on this activity pertain to general chemistry, it was created for an AP biology course. It is crucial for biology learners to grasp these concepts as a foundation for biochemical processes that they will...
Curated OER
The Periodic Table Game
First, beginning chemists assemble a large periodic table of elements. Then, they play a game in which they roll dice, move a marker along the elements, and collect pennies according to the number of valence electrons of the element that...