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There are 13 protons in an atom of aluminum, regardless of the isotope. If it didn't have 13 protons, it wouldn't be aluminum, it would be something else. There are 14 neutrons in an atom of aluminum 27, its only stable isotope.

See the Related Questions for how to count the number of protons, neutrons and electrons in any atom of any element.

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15y ago

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Related Questions

How do you determine the number of neutrons in an atom of aluminum27?

there are 24 and no it isn't too high


What do the protons of the nucleus of an atom determine?

Number of protons or the atomic number of an atom determines what is the element.


What does the number of protons in a nucleaus determine of an atom?

The number of protons in the nucleus of an atom determines the atomic number of the element to which the atom belongs.


How are the number of protons an important aspect of the atom?

the number of protons determine what the substance is. if the number of protons in an atom change, the substance made of that atom changes too.


What determine the atomic number of atom?

The number of protons


What do protons determine about an element?

The protons of an element determine the atomic number, also known as the proton number. Do not confuse this with mass number which is the number of protons and neutrons.


What determine the charge of an atom?

It depends on the number of electrons and protons the charge of an atom depends on the number of electrons and the number of protons


Can the mass number be used to determine the number of electrons in an atom?

No, the mass number (number of protons and neutrons) cannot be used to determine the number of electrons in an atom. The number of electrons in an atom is determined by the number of protons in the nucleus, which is the atomic number. Electrons are equal in number to protons in a neutral atom.


What does the mass number determine?

The Number Of Protons & Neutrons In An Atom.


Is the atomic number determine by the number protons in an atom?

yes...


What number is used to determine how many electrons are in a neutral atom?

The number used to determine how many electrons are in a neutral atom is the atomic number, which is the number of protons in the nucleus of the atom. In a neutral atom, the number of electrons is equal to the number of protons, thus balancing out the positive charge of the protons with the negative charge of the electrons.


How do you determine the number of protons in an atom of helium?

2