write the atomic symbol (including the atomic number) for the isotope of iodine with 76 neutrons. use the…
write the atomic symbol (including the atomic number) for the isotope of iodine with 76 neutrons. use the format $_z^a x$ in your answer.
Answer
Explanation:
Step1: Find atomic number of iodine
From periodic - table, atomic number of iodine ($I$) is 53.
Step2: Calculate mass number
Mass number ($A$) = number of protons+number of neutrons. Protons = atomic number = 53, neutrons = 76. So $A=53 + 76=129$.
Answer:
$^{129}_{53}I$