how do you estimate the atomic mass without making a mathematical calculation? please explain since i might have a quiz coming up.. thank you!
2006-09-19 11:57:29 · 3 answers · asked by sxe_afi_fallchild 1 in Science & Mathematics ➔ Chemistry
i dont know the best way to estimate it, the math is simple- just take the atomic numbers times the percentages and then add them up
10 X .2= 2
11 X .8= 8.8
2 + 8.8 = atomic mass of 10.8
2006-09-19 12:02:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If you've got to do it by guesstimation without real math, then just think of the simple case of 50-50, which would yield an average atomic mass of 10.5, right? But if it's not 50-50 then the answer will be biased toward the more predominant form. I hope this helps.
2006-09-19 20:10:24 · answer #2 · answered by Sciencenut 7 · 0⤊ 0⤋
without math u can't do it
atomic mass = 10*20% + 11*80%
2006-09-19 19:00:57 · answer #3 · answered by andreicnx 3 · 0⤊ 0⤋