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Uranium-235 has 143 neutrons and uranium-238 has 146 neutrons. And of course the atomic masses are different.
406 - 238 = 168
can cause lung cancer
238 doesn't have any factors in that range. 1190 and 1428 are multiples of 238.
Uranium-235 and uranium-238 are the isotopes of the same element - uranium, a natural radioactive chemical element; the atomic number is the same - 92. Also the electronic structure, the number of protons, etc. Differences: atomic mass, number of neutrons, U-235 is fissile with thermal neutrons but U-238 is only fertile, halflife, type of disintegration types and energy of emitted radiations, etc.
Counting all integers from 1 to 238 inclusive, there are 606 digits between these two numbers.
238
The reaction produces more neutrons than were needed to start it.
238
700 milliion years. The definition of half-life is the period of time during which one-half of the atoms of an element undergo decay into other elements.
Within group differences refers to differences within one individual group. Between group differences refers to the differences between 2 or more groups.
Genetic differences