(a) the abundance of 25 Mg. (b) the abundance of 26 Mg.

Question

A periodic table might list the average atomic mass of magnesium as being 24.312 u, which is the result of weighting the atomic masses of the magnesium isotopes according to their natural abundances on Earth.The three isotopes and their masses are 24Mg (23.985 04 u), 25Mg (24.985 84 u), and 26Mg (25.982 59 u). The natural abundance of 24Mg is 78.99% by mass (that is, 78.99% of the mass of a naturally occurring sample of magnesium is due to the presence of 24Mg).What is the abundance of (a) 25Mg and (b) 26Mg?

Answer 1

Question

Chapter 42, Problem 19P

To determine

To calculate:

(a) the abundance of ²⁵Mg.

(b) the abundance of ²⁶Mg.

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