Question

Which atom has a nucleus that contains 13 protons and 14 neutrons

1. Mg
2. Be
3. Al
4. N

Answer 1

Aluminum has 13 protons and 14 neutrons

Answer 2

Answer: Al

Step-by-step explanation:

Aluminium has an atomic number of 13 and a mass number of 27. Atomic number refers to the number of protons in the nucleus of an atom. The number of protons in the nucleus + the number of neutrons gives the mass number. If the mass number of aluminum is 27, that means that the number of neutrons are 14 because 13+14=27