It’s that time of the year again, when all the fun and joy disappear for a while. This is because you hear your parents and teachers asking you to be serious with your studies as the exams are about ...

The table shows the melting points of five alkali metals. Use this information to describe how melting point changes in group 1.

in older periodic tables, group numbers 1-7 and 0 are given for the main groups in newer periodic tables, ‘IUPAC’ group numbers 1-18 are given for all the groups Hydrogen, H, is placed above the top ...

Cations are ions that are positively charged. Anions are ions that are negatively charged. Ions are charged atoms or molecules. If a balanced atom loses one or more electrons, it will become a ...

The periodic table captures a subtle pattern that runs through the chemical elements, the fundamental building blocks of everything around us: from the aluminium in bike frames to the xenon gas in ...

Cations are ions that are positively charged. Anions are ions that are negatively charged. Ions are charged atoms or molecules. If a balanced atom loses one or more electrons, it will become a ...

The Periodic Table of Chemical Elements is more than just a guide or catalogue of the entire known atoms in the universe; it is essentially a window on the universe, helping to expand our ...

The 2019 International Year of the Periodic Table may be over, but we can continue celebrating the many ways that the periodic table can serve as an organizational tool, including as a guide for our ...