What element has 13 protons in its nucleus?
Aluminum is a chemical element with symbol Al and atomic number 13.
13 protons
Therefore, for an atom of aluminum, there are 13 electrons inside it. So we’ve demonstrated that for an aluminum atom which has the atomic number of 13 and has a mass number of 27, there are 13 protons, 14 neutrons, and 13 electrons.
The isotope Al-27 has 13 protons and 14 neutrons. Aluminum’s average atomic mass is 26.981539 AMU.
Explanation: may be the answer is aluminium.
magnesium
From the example, you can see that this magnesium atom would have 12 protons, 13 neutrons, and 10 electrons. Its mass is 25 (12 p + 13 n) and its charge is +2 (12 p – 10 e).
Therefore, for an atom of aluminum, there are 13 electrons inside it. So we’ve demonstrated that for an aluminum atom which has the atomic number of 13 and has a mass number of 27, there are 13 protons, 14 neutrons, and 13 electrons.
Aluminum has (by definition) 13 protons, 13 positively charged particles. Because aluminum is neutral (as is all matter), it therefore has 13 negatively charged particles, electrons. Aluminum has an atomic mass of about 27 amu; how many neutrons are present in the aluminum nucleus?
What has a atomic number of 13?
Aluminum
