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

The wilson chamber is used to study: direction, speed, and distance of radioactivity the intensity of radiation the appearance of individual atoms all of the above

How many neutrons does a atom of cobalt have?

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?