Question

question 4 (10 points)
naturally occurring bromine consists of two isotopes: 79br and 81br. how many neutrons are in each isotope?
o a 44, 45
o b 44, 46
o c 35, 37
o d 35, 35
o e 45, 47

Explanation:

Step1: Recall the atomic number of bromine

The atomic number \(Z\) of bromine (\(Br\)) is \(35\).

Step2: Use the formula for the number of neutrons

The formula for the number of neutrons \(N\) is \(N = A - Z\), where \(A\) is the mass number.
For \(^{79}Br\):
\(N_1=79 - 35\)
\(N_1 = 44\)
For \(^{81}Br\):
\(N_2=81 - 35\)
\(N_2 = 46\)

Answer:

B. \(44,46\)