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Eleven non-metals are gases at room temperature, including oxygen and chlorine. One non-metal, bromine, is a liquid at room temperature. The other non-metals are solids at room temperature ...

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

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

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

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‘I have a dream of walking into a chemistry lecture theatre and seeing two periodic tables – the traditional one and a periodic table in the language of the Gadigal whose land we teach on,’ says ...

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

The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a little over 150 years. The handy visual reference guide organizes known ...

Periodic-Tables-Restaurant-Reservation-System is a full-stack web application developed as a capstone project for Thinkful's Bootcamp Engineering Program. The project aims to create a reservation ...