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 ...

We present a general method for solving the modified Helmholtz equation without shape approximation for an arbitrary periodic charge distribution ... This paper is organized as follows: In Section 2.1 ...

‘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 ...

Like gold and silver, platinum and palladium serve as investments that can help you hedge against inflation. However, ...

After a Chinese export ban, can America get gallium and germanium from Canada — or will tariffs get in the way?

Statement by US President Donald Trump about his interest in gaining access to rare earth metal deposits at In Ukraine, they ...

During Meghan Markle's time as a working royal, she crossed paths with dozens of servants and staff, but not everyone warmed ...