The answer is Nona-9, penta- is five, hexa- is six, and deca- is ten.
Can u write it more specifically? so that I can answer
Answer:
half-life = 3.8 days
total time of decay = 15.2 days
initial amount = 100. g
number of half-lives past: 15.2/3.8 = 4 half-lives
4 half-lives = 1/16 remains
100. g x 1/16 = 6.25 g
Answer:
if an atom gains an electron, the ion has negetive charge
