A sample of my "Belements", short (4 slides, typically) presentations to start the day or transition to a new activity.
Typical presentation includes:
Slide 1: A picture related to the element.
Slide 2: Some physical data (boiling/melting points, density, percent composition of a typical person and the Earth's crust), some more photos, and the etymology of the element's name.
Slide 3: Some chemical properties but mostly common uses of the element.
Slide 4: "Odds and Ends." Trivia, unusual uses, and other stories of how the element has cropped up in history. This was largely inspired by Sam Kean's book "The Disappearing Spoon."
Some other presentations have additional slides as warranted. Three (Ac, At, Pa) are limited to three slides because of their scarcity and/or extreme radioactivity..