31
6
Number of neutrons = Mass number - Number of protons = 26 - 12 = 14 neutrons
Number of neutrons = Mass number - Atomic number = 37 - 17 = 20 neutrons
Aluminium has roughly a couple dozen isotopes; but the only one both stable and naturally occurring has 14 neutrons (mass number of 27).
Aluminium has 15 neutrons.
Aluminium has 13 protons and 14 neutrons. Giving aluminium an atomic number of 13 and an atomic mass of 27.
aluminium+hydrochloric acid= aluminium chloride+hydrogen :)
Aluminium and chlorine
Aluminium chloride (AlCl3) contain Al and Cl.
Aluminium and chlorine.
Aluminium and chlorine
In the Periodic Table aluminium is described as [27/13]Al 27 is the atomic mass ; the total of all the neutrons protons (nucleons) 13 is the atomic number ; the total of all the protons in the nucleus. Hencethe total neutrons is the mass subtracted from the number. 27 - 13 = 14 is the total number of neutrons in aluminium.