Carbon-13 is natural and represents 1.07 % of the carbon in nature. The remainder is Carbon-12.
It allows us to have Carbon 13 dating. Not two atoms going out...but Carbon 13 breaks down over time. If we know how much has broken down, we know how long it's taken to break down so we know how old it is.
13
6 electrons
Natural is to nature as artificial is to artifice.
The definitions is : Natural- A natural plant Artificial- An artificial one
Antonyms for "artificial" are genuine, real, and natural.
artificial
natural
artificial can't be found in natural environment and are maken in labs
Natural silk is a proteinic fiber (sericin and fibroin).
Artificial. Man made.
Curium is an artificial element.
artificial