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.
Sienna Name Meaning and History From the Italian city of Siena, which gave its name to a reddish shade of brown. The name itself is possibly influenced by the word sienna, meaning orange-red. Pronounced: SEE en uh. Origin of Sienna Name. Latin. Gender of Sienna. Girl. Analysis of Sienna. Users of this name Patriotic , Stubborn , High ability of Persuasion , Happy , Sensitive. Sienna Statistics