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Two naturally occurring isotopes exist for the hypothetical element redneckium (symbol Rk, Z = 119). 30.29% of redneckium atoms have a relative mass of 295.43 amu and A = 235. 69.71% of redneckium atoms have a relative mass of 298.09 amu and A = 238. Based on this information, calculate the atomic mass of redneckium. Show your work.
a) 297.3 amu
b) 148.7 amu
c) 296.2 amu
d) 207.8 amu


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