Calculate the average atomic mass of gold with the 50% gold-197 and 50% being gold-198 (We’re working on calculating average atomic mass, I also need to show work so please show it if you can!)

Calculate the average atomic mass of gold with the 50% gold-197 and 50% being gold-198

(We’re working on calculating average atomic mass, I also need to show work so please show it if you can!)

It's too short. Write at least 20 characters to explain it well.

Explanation:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.