Hurry PLEASE HELP! 12. Carbon-14 has a half-life of 5,770 years. A 25 gram sample of Carbon-14 was found. The original sample mass was hypothesized to have a mass of 100 grams. How old was the sample based on this hypothesis?
A. 2885
B. 11,540
C. 17,310
D. 23,080

B. 11,540

The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.  

Usually radioactive elements have an unstable atomic nucleus.  

General formulas used in decay:  

T = duration of decay  

t 1/2 = half-life  

N₀ = the number of initial radioactive atoms  

Nt = the number of radioactive atoms left after decaying during T time  

Nt=25 g

No=100 g

t1/2=5770 years

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but