Aluminum has 13 protons and 13 or 14 neutrons. Silicon has 14 protons, and 14 to 18 neutrons.
nucleons equal for protons and neutron total. so it should be 25 neucleons.
There are 13 protons and 14 neutrons in the nucleus of an aluminum atom. The number of protons is the same as the atomic number and the number of neutrons is just the mass number - atomic number. In a stable atom anyway, there's different isotopes which is where there is a different number of neutrons, but if it doesn't specify then this is what it is.
27 add protons and neutrons
3 valance electrons,13 electrons,13 protons,14 neutrons
number of neutrons = mass number - number of protons = 28 - 13 = 15 neutrons
13 protons means it must be aluminum (Al). 15 neutrons means its atomic mass will be 28. This is not aluminum's most abundant isotope, but it is still aluminum.
The element has 13 protons. So the element is aluminium. It has 15 neutrons (28 - 13 = 15) and the isotope is 13Al28
13 protons and 14 neutrons
Phosphorous has 15 protons and 16 neutrons.
Carbon-13 contains 6 protons and 7 neutrons.
The isotope that has 13 protons and 14 neutrons is aluminum.
Nitrogen 7 protons, 7 neutrons and 7 electrons Aluminium 13 protons, 14 neutrons and 13 electrons
Aluminum has 13 protons and 13 or 14 neutrons. Silicon has 14 protons, and 14 to 18 neutrons.
Sulfur-31 is the isotope with 16 protons and 15 neutrons.
13 protons and 13 electrons as its atomic number is 13. Al-27 isotope has 14 neutrons.
Nitrogen-14 has 7 protons and neutrons !