And yet, it has also been suggested that this periodic table only describes 4% of the mass in the universe:
"All the stars, planets and galaxies that can be seen today make up just 4 percent of the universe. The other 96 percent is made of stuff astronomers can't see, detect or even comprehend."
https://www.space.com/11642-dark-matter-dark-energy-4-percen...
They should have mentioned this in the article, as it is an important qualifier.