Since then, the periodic table has evolved to reflect over 150 years of scientific development and understanding in chemistry and physics. Today, with 118 known elements, it is widely regarded as one ...

The Periodic Table is an amazing chemistry tool that is organized with elements in order of increasing atomic number. The properties of the element change as you move across the row, but are similar ...

However, he is remembered for his search for a pattern in inorganic chemistry. Just four years before Mendeleev announced his periodic table, Newlands noticed that there were similarities between ...

So, all compounds are molecules, and some elements are too. All the different elements are arranged in a chart called the periodic table. A Russian scientist called Dmitri Mendeleev produced one ...

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

National Periodic Table Day, observed annually on February 7, honors one of the most significant achievements in scientific ...

Zahra Khan finds out how a team of scholars is working with the Gadigal to develop a chart that celebrates Indigenous ...

And then we meet helium. The second-lightest element is a noble gas, a class of elements that have no need to create molecular compounds as they have no instability issues. It is possible under ...

Compounds are not found on the periodic table. For example, water isn’t on the periodic table because it is a compound, not an element. Water is made from the element hydrogen bonded to the ...