Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...

One feature of compounds made with transition metals is their intense colour. There are many examples in nature, including ...

The colors of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But ...

Warning! Inhaling beryllium dust or fumes can be fatal. Beryllium is a confirmed human carcinogen. The critical effects of exposure to beryllium are lung cancer and berylliosis. The present ACGIH TLV ...

Has the site been hacked? Maybe it’s a prank? What if I told you that you’ve just memorized the first 10 elements of the periodic table. Much of your memory is stored in the form of associations.