There are three stable isotopes of magnesium: 24Mg, 25Mg, and 26Mg. The fractional abundances of the isotopes are 0.79, 0.10, an

Question

Sveta_85 [38]

2 years ago

13

There are three stable isotopes of magnesium: 24Mg, 25Mg, and 26Mg. The fractional abundances of the isotopes are 0.79, 0.10, an

d 0.11, respectively. Calculate the gram atomic mass of magnesium.

Chemistry

2 answers:

tatiyna · Answer 1 · 2024-01-05T02:47:47+03:00

Hello, to find the answer in this question, I am assuming it is trying to ask for the atomic mass

Usually we have the relative abundance in a percentage form, but it looks as if these have already been converted or divided by 100

So first what we do since we have the isotopes and their mass numbers, we multiply each of these with their given abundances.

(24 x 0.79) + (25 x 0.10) + (26 x 0.11)

= 24.32

The gram atomic mass of magnesium is 24.32 amu

Illusion [34] · Answer 2 · 2024-01-05T01:43:05+03:00

Illusion [34]2 years ago

3 0

Answer:

Name the elements present in the following compounds sodium bromide zinc sulphide lead oxide magnesium nitride potassium iodine