physics

hadron

A subatomic particle of a type including the baryons and mesons, which can take part in the strong interaction.

Note: The Large Hadron Collider is a large machine that collides hadrons, not a machine that collides large hadrons.

Higgs boson

Upper-case "H", lower-case "b".

Avoid the tautology "Higgs-boson particle". A boson is a particle; there is no need to repeat yourself. 

Named after the English physicist Peter Higgs, the Higgs boson is a subatomic particle whose existence is predicted by the theory that unified the weak and electromagnetic interactions.

ionise

To convert (an atom, molecule, or substance) into an ion or ions, typically by removing one or more electrons.

ions and isotopes

An ion is an atom with a net electric charge due to the loss or gain of one or more electrons.

An isotope is each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties. Isotopes are often radioactive.

The standard scientific notation for ions is as follows:

ElementCharge

And for isotopes:

Atomic massElement

J (upper case)

Joules and kilojoules (kJ) are units of energy. 

One joule is equal to the energy expended (or work done) in applying a force of one newton through a distance of one metre.

One kilojoule equals 1000 joules.

Subscribe to physics

You are here

Home