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.
Baby names meanings search results: The name Kellan is a baby boy name. The name Kellan comes from the Gaelic origin. In Gaelic The meaning of the name Kellan is: Slender; fair.he name Kellan is a baby boy name. The name Kellan comes from the Gaelic origin. In Gaelic The meaning of the name Kellan is: Slender; fair.
The name Evan is of Welsh origin. The meaning of Evan is G-d is gracous. It is also of Scottish origin, where its meaning is born of the yew tree, youth and Hebrew origin, where its meaning is stone, rock. Evan is used as both a boys and girls name. It consists of 4 letters and 2 syllables and is pronounced E-van.