238
The plutonium isotope with 145 neutrons is plutonium-242 (Pu-242). This isotope has 97 protons (since all plutonium isotopes have 94 protons) and a total atomic mass of approximately 242 atomic mass units.
242 = 576
No. 121 is odd.half of 242 equals 121and it is an odd numberNO. Half of 242 is not an even number.1/2 of 242 = 121 which is an odd number
All the multiples of 234: 234, 468, 702, 936 +234 . . .
242 - 209 = 33
It is: 234/2 = 117
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242-242
Check the VIN #. "242" is the GTO number.
(98+ 144)/2 = 242/2 = 121
The mass number of the isotope uranium-234 is 142.
322 to 563 is 242 whole numbers inclusively. But, as the question was 'between' 322 and 563, then the number would be 242 - 2 = 240