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

Compounds are not found on the periodic table. For example, water isn’t on the periodic table because it is a compound, not an element. Water is made from the element hydrogen bonded to the ...

The periodic table is a good example of how scientific ideas develop over time. Mendeleev left gaps in his table when he drew it up in 1869, using his insights to predict that scientists would ...