Energy is released as a bond is formed
Answer:
44 years will take for 10 grams of Actinium to decay until there were only 2.5 grams.
Explanation:
The half life it tell you about the time in which half of the quantity of the isotope will decay.
time (years) quantity of isotope (grams)
0 10
22 5
44 2.5
<span><span>The tendency of a less dense substance to float in a more dense liquid is called</span> buoyancy. Ice floats in water because it is less dense than water. Hope this helps!!</span>