100/(2n) Half-life (abbreviated t1â2) is the time required for a quantity to reduce to half its initial value. The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo, or how long stable atoms survive, radioactive decay.
Meaning of Kellan. Irish name. In Irish, the name Kellan means-powerful. Other origins for the name Kellan include-Irish, Gaelic, Gaelic.The name Kellan is most often used as a boy name or male name.Irish Name Meaning-powerful. Origin-Ireland.ther origins for the name Kellan include-Irish, Gaelic, Gaelic.The name Kellan is most often used as a boy name or male name.
What does Evan mean? [ 2 syll. e-van, ev-an ] The baby boy name Evan is also used as a girl name, but the use for boys is much more common. It is pronounced in English as EHV-ahN â . Evan is used chiefly in the Scottish, English, and Welsh languages, and it is derived from Celtic and Hebrew origins. The name is an Anglicized form of Iefan, which is from Ieuan (Old Welsh).