45 neutrons
A simply formula is the atomic mass of selenium (rounded to the whole number) - atomic number = neutrons. So Selenium 76 has 45 neutrons.
45
Selenium a non metal hexagonal grey element has 34 protons and electrons. The atomic structure of Selenium has 45 neutrons.
The atomic number of selenium is 34. so there are 34 protons. Number of neutrons = 80 - 34 = 46
Selenium-79 is a radioisotope of selenium containing 34 protons and 45 neutrons.
Selenium (Se) has an atomic number of 34 which means in a balance atom Se will have 34 protons and 34 electrons then Se has a mass of 79 so to get the neutrons we minus the protons from the mass and we get 45 final answer: Neutrons: 45 Protons:34 Electrons: 34
I don't know Se-55.
I don't know Se-50.
Slenium has 34 protons and 45 neutrons! :)
The isotope, Se-79, has 45 neutrons (79 - 34 = 45)
Neutrons = Mass number (Se-80) minus Atom (or proton 34Se) number (34) = 80-34 = 46 neutrons