Question

Consider the following data about the scale isotope of neon. Calculate the average atomic mass for neon using The data shown below

Ne-20: 19.99 amu; 90.1
Ne-21: 20.99 amu; 1.1
Ne-2s: 21.99 amu; 8.8
A) 20.16 amu
B) 20.24 amu
C) 20.01 amu
D) 20.46 amu

Answer 1

To calculate the average atomic mass of neon, multiply the mass of each isotope by its abundance and add them together. The average atomic mass of neon is 20.18 amu.

Step-by-step explanation:

To calculate the average atomic mass of neon, we need to multiply the mass of each isotope by its abundance and then add them together. Using the given data:

Ne-20: 90.1% abundance, mass = 19.99 amu
Ne-21: 1.1% abundance, mass = 20.99 amu
Ne-22: 8.8% abundance, mass = 21.99 amu

We calculate the average atomic mass as:
(90.1% * 19.99 amu) + (1.1% * 20.99 amu) + (8.8% * 21.99 amu) = 20.1797 amu

Therefore, the average atomic mass of neon is 20.18 amu.