The periodic table contains an enormous amount of information, but some of the most important are atomic numbers, atomic symbols, and atomic masses. Atomic symbol: The atomic symbol (or element ...

Click to enlarge image. When Dmitri Mendeleev drew up the periodic table, he grouped elements of similar properties. Based on the number of electrons, a scientist can determine which group to place an ...

With Oxygen so you can breathe And Fluorine for your pretty teeth Neon to light up the signs Sodium for salty times Magnesium, Aluminium, Silicon Phosphorus, then Sulfur, Chlorine and Argon Potassium, ...

In this opening excerpt from a Wikipedia article, every seventh word, up to twenty words total, has been removed. Can you supply the missing words? 5m ...

Many cities around the UK are represented by different symbols. Try the quiz to see how many you know!

We’ve compiled a list of the greatest Christmas quiz questions (and answers) covering everything from Christmas traditions, films, food, and music for 2024, so you look like you’ve done your ...

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The Jewish festival of Hanukkah is here, but how much do you know about it?