If a fossil sample originally contained 5 grams of carbon-14 and the half-life of carbon-14 is 5,700 years.After 11,400 years how many grams of carbon-14 would remain

Respuesta :

because the half-life is 11, 400 years there would be 1/3 of 5 grams left in it which 1.75 grams 
Your answer would be:
there is 1.75 grams of carbon-14 left in the fossil sample