Question

A sample of Strontium-90 is found to have decayed to one-fourth of its original amount after 58.2 years. What is the half-life of strontium-90?
Answer

87.3 years

43.7 years

29.1 years

10.9 years

Answer 1

@chmvijay ?

Answer 2

what u think

Answer 3

29.1?

Answer 4

ur right :)

Answer 5

You are given 175 grams of a substance with a half-life of 0.25 years. How much time has passed if you now have 21.88 grams?
Answer

0.75 years

3 years

3.75 years

0.25 years
Do you think this is 0.75?

Answer 6

yaa its

Answer 7

One more for ya :) Fusion is the joining of two nuclei to form one or two nuclei with a combined mass that is less than that of the original two nuclei.
Answer True False
This is true right?

Answer 8

I can't recall whether fusion produces products of greater mass or lesser mass. now that I'm thinking about it it might be greater

Answer 9

Nuclear fusion is the joining of two nuclei to form a heavier nuclei.

Answer 10

mass of daughter nucleus is lower than the mass of the parent nuclei in fission and opposite is same in fusion reaction @Pumpkin890

Answer 11

got it ?

Answer 12

Yes thank you! The answer is false correct?

Answer 13

yup :)