What are the percent natural abundances of the two isotopes Ru-85 and Ru-87?

Answer 1

Their percent natural abundances are Ru-85 (72. 2 percent) and Ru-87 (27. 8 percent). Ru-85 and Ru-87 are the only naturally occurring isotopes of Rubidium out of its 35 known isotopes.

Answer 2

If there are 2 naturally occuring isotopes of Rubidium 85 Rb Mass 84.91u Mass 85.47u 87 Rb Mass 86.82u, then is 15 the percent abundance of each of the isotope.

Answer 3

The natural abundances of Ru-85 and Ru-87 isotopes are approximately 37.4% and 62.6%, respectively.