11 grade chemistry others
How many neutrons does Uranium-238 have if it has 92 protons?
How many neutrons does Uranium-238 have if it has 92 protons?
1 Answer
Askiitians Tutor Team
To find the number of neutrons in an atom of Uranium-238, you subtract the number of protons (which is the atomic number) from the mass number.
For Uranium-238:
Atomic number (number of protons) = 92
Mass number (sum of protons and neutrons) = 238
So, to find the number of neutrons:
Neutrons = Mass number - Atomic number
Neutrons = 238 - 92
Neutrons = 146
Uranium-238 has 146 neutrons.
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