The atomic symbol for gold is "Au" because the word ... you will notice that the atomic mass on the periodic table is a decimal; that's because the number is a weighted average of the various ...

As metals are added to gold during jewelry-making, the gold becomes less fine and the number of karats drops. For example, 12 karat gold contains 50% gold and 50% alloys by weight. The word karat ...

The economist John Maynard Keynes famously called gold a “barbarous relic”, suggesting that its usefulness as money is an artifact of the past. In an era filled with cashless transactions and ...

Test your knowledge and compete with other Live Science readers to see who can come top in our periodic table quiz ...

You may remember a detail or two about this mighty table’s organization from a long-ago chemistry class. Elements are ordered according to their number ... proposed his periodic table 150 ...