Question 2/5 Rubidium is a soft, silvory. white metal that has two common isotopes, Rb-85 and Rb-87. If the abundance of Rb-85 is 80.2% and the abundance of Rb-87 is 19.8%, what is the average atomic mass of rubidium?
A. 85.396 amu
B. 86.132 amu
C. 85.590 amu
D. 86.245 amu

26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .

  the mississippians were considered to be  horticulturalists, which means they were

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.