Question

In the summer of 2003 a team of American and Russian scientists synthesized isotopes of element 115 by bombarding a target of 243Am with 48Ca. One of the isotopes had a mass number of 288.

You can see my attempted answer, but it was wrong. Please help :)

Part 3 (1 point) Within about 20 seconds an isotope emitted four ? particles. Write the symbol of the nuclide that is produced after all four decay events lltx ? ? ? ?? 284 272 10 268 105 111ng

Answer 1

An radioactive isotope on losing an $\alpha$ -particle will show a loss in mass number by 4 units and a loss in atomic number by 2 units. Then, emission of 4 $\alpha$ -particle by the given isotope will be :

284 280 276 272 108 113 X 109 To7 105 If we gåve atomic Symbols accośding to atomic number: 284 Uut - 280 280 a 276 Mt -- log 272 Bb --" Tot 268 DE 105 ut 113

Your attempt is correct.