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The numbers of protons and electrons in any neutral atom are the same as the atomic number, 13 for aluminum. The number of neutrons varies by isotope and can be found by subtracting the atomic number from the Atomic Mass number. One isotope is Al-27, in which there are 14 neutrons.

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14y ago
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9y ago

Aluminium is a metal element. Mass number of it is 27.

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9y ago

Alluminium is a metal element. Atomic mass number of it is 27.

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12y ago

The atomic number for Al is 13 and the atomic mass is 26.98.

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Q: What is the atomic number and atomic mass number for aluminum?
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Related questions

What is the atomic mass of aluminum?

The atomic mass number of aluminum is 27. The atomic mass of aluminum is 26.98115386


What is the atomic number for Aliminium?

The atomic number for aluminum (Al) is 13, and it has an atomic mass of 27.0


What is the atomic weight of aluminium?

Aluminum's atomic number is 13. Its atomic MASS is 25.98154.


Is aluminum atomic weight rounded to 26 or 27?

The gram atomic mass of aluminum, which is defined as the mass of Avogadro's Number of atoms of the element, is 26.9815. To the justified number of significant digits, this is the same as the gram atomic mass. Therefore, the mass stated in the question contains Avogadro's Number of atoms: to the justified number of significant digits, 6.02 X 1023.


What is th mass number of aluminum?

Alluminium is a metal element. Atomic mass of it is 27.


What is aluminum's atomic mass?

Aluminum's atomic mass is 26.9815386,but if rounded up,it is 27.


What is the atomic number of aluminum?

The atomic number for aluminum (aluminium, symbol Al) is 13. This is the number of protons, also known as the "element number." Atomic mass/weight is 26.981 (most aluminum is 27Al) The atomic weight of Al is 26.981539 amu, and the molar mass 26.981539 grams per mole. (see also the related link below)


What is aluminums symbol?

the symbol is Al and the charge is negative 3.


How can you find the number of neutrons that are in the nucleus of an atom?

Aluminum is 13 because that is the atomic number (the number of protons). The atomic mass number is the number of protons and neutrons in an atom. In this, you just subtract the number of protons from the mass number. If Aluminum (Al), #13, has a mass number of 27, then it has 14 neutrons. Pretty simple.


What is the number of Aluminum?

The atomic number for aluminum (aluminium, symbol Al) is 13. This is the number of protons, also known as the "element number." Atomic Mass/weight is 26.981 (most aluminum is 27Al) The atomic weight of Al is 26.981539 amu, and the molar mass 26.981539 grams per mole. (see also the related link below)


Aluminum mass number?

Aluminum is useful for make alloys. It is a p block element. aluminum got 13 as atomic number.13


How many neutrons are in the nucleus of the isotopes of aluminum-25?

The atomic number of aluminum is 13, therefore there will be 13 protons.The number of neutrons equals the mass number minus the atomic number. For aluminum-25, that will be 25 - 13 = 12 neutrons.There will be 13 electrons in the neutral atom of aluminum, regardless of which isotope we are considering.