Every time I write about particle physics, I encounter a moment of uncertainty about a quantity that, at first glance, ought to be clear. How many kinds of elementary particles should I say there are?

VLP technology shows remarkable versatility. Dozens of vaccine candidates are in development for infectious diseases, inflammatory conditions and even cancer. These particles are made up of viral ...

Matter is made up of small particles called atoms. Atoms can exist on their own or together as molecules. Atoms are very small and around 100,000,000 of them end to end would measure 1 centimetre.

Nanoparticles are particles that exist on a nanometre scale (i.e., below 100 nm in at least one dimension). They can possess physical properties such as uniformity, conductance or special optical ...

Watch this video to find out how to use the periodic table to identify the atomic and mass numbers of an element. For example, the atomic number of sodium is 11. Every sodium atom has 11 protons and ...

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