Answer:
C. Bacteria
Explanation:
Above ANS is correct mark it as branlist answer
<span>either AX, Ax, aX, ax
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Radioactive decay occurs when an atom has either to many or to few neutrons and becomes unstable and start to emit radio active radioactive radiation and the atom start to decompose.
At the end two things can happen either the atom will transform in a new element with a lower atomic # and atomic mass # or the remaining neutron will transform into an electron and be on its own way
2.5g
10÷2=5
5÷2=2.5
everytime it completes a half life, you divide the number by two
