You're listening to Chemistry in its element brought to you by Chemistry World, the magazine of the Royal Society of Chemistry. Sodium, like most elements in the periodic table could be said to have a ...

For example, lithium (Li), sodium (Na) and potassium (K ... However, the modern periodic table arranges the elements by increasing atomic number, rather than atomic mass. Mendeleev recognised ...

For example, lithium (Li), sodium (Na) and potassium (K ... However, the modern periodic table arranges the elements by increasing atomic number, rather than atomic mass. Mendeleev recognised ...

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 ...

These are almost one-quarter of the periodic table ... elements that our bodies need in larger amounts: oxygen, carbon, hydrogen, nitrogen, phosphorus, sulphur, chlorine, potassium, sodium ...

The periodic table captures a subtle pattern that runs ... is a reactive metal — just like sodium (element number 11) and potassium (number 19). A good way to think about it is to imagine ...

You may use table navigation commands for the screen reader of your choice. The Periodic Table of Elements. Each entry contains the atomic number, chemical symbol, and atomic mass to two decimal ...

Players read questions about energy levels and score points by picking the correct element as the answer. Electrons are in regions around the nucleus ... After the second level has 8 electrons, the ...

Group 7 of the periodic table is something of an oddity ... by the Italian team revealed a new element, which could be extracted by boiling with sodium hydroxide that also contained a small ...