Question

A newly discovered element, Y, has two naturally occurring isotopes. 90.3 percent of the sample is an isotope with a mass of 267.8 u, and 9.7 percent of the sample is an isotope with a mass of 270.9 u. What is the weighted average atomic mass for this element?

Answer 1

268.1 u
269.0 u
269.4 u
270.6 u

Answer 2

@Preetha

Answer 3

@Purquoise

Answer 4

@dan815

Answer 5

@Nnesha

Answer 6

@TheSmartOne

Answer 7

@dan815