A 0.456mg sample of hydrogen-3 was collected. After 24.52 years, 0.114 mg of the sample remains. What is the half life of hydrogen-3?

the answer is 1 i believe

im pretty sure its b

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.