Students look more deeply into the structure of the atom and play a game to better understand the relationship between protons, neutrons, electrons, and energy levels in atoms and their location in ...

Bismuth, the 83rd element in the periodic table ... many bismuth compounds are even less toxic than table salt (sodium chloride) 4! This makes bismuth unique among the heavy metals, and has ...

Players read questions about energy levels and score points by picking the correct element as the answer. Electrons are in regions around the nucleus that are different distances away from the nucleus ...

The Laboratory in Blue Prince is home to two puzzles: the periodic table puzzle and the machine puzzle. Both puzzles are ...

These are almost one-quarter of the periodic table and are mainly found in the first four periods. Of these, 11 are essential elements that our bodies need in larger amounts: oxygen, carbon ...

The modern periodic table has no gaps and has extended beyond what Mendeleev predicted. There were 64 elements when Mendeleev was working on his table and he predicted 4 more. Now the periodic ...