Question

how many neutrons are in a neutral aluminum atom? *
only type the number
your answer

which of the bohr models to the right is/are incorrect? *
check all that apply!

1st one
2nd one
3rd one
4th one

Explanation:

Step1: Recall aluminum's atomic number and mass number

Aluminum (Al) has an atomic number (Z) of 13 and a mass number (A) of approximately 27.

Step2: Use the formula for number of neutrons

The number of neutrons (N) is given by $N = A - Z$. So, $N=27 - 13$.

Step3: Calculate the number of neutrons

$N = 14$.

For the second - part, since no details about the Bohr models are given other than the visual representation which is not described in text, we cannot answer it.

Answer:

14