Question

How many protons and neutrons would Al-27 have?

Option 1: 13 protons and 14 neutrons
Option 2: 14 protons and 13 neutrons
Option 3: 13 protons and 27 neutrons
Option 4: 27 protons and 13 neutrons

Answer 1

Al-27 has 13 protons and 14 neutrons, which is Option 1.

Step-by-step explanation:

The isotope Al-27 represents an aluminum atom with a mass number of 27. The atomic number of aluminum (Al) is 13, which means it has 13 protons. The mass number is the sum of the protons and neutrons in an atom's nucleus. To find the number of neutrons, we subtract the number of protons from the mass number: 27 (mass number) - 13 (protons) = 14 neutrons.

Therefore, the correct answer is Option 1: 13 protons and 14 neutrons.