https://padlet.com/s1132173/mjb1vfbdrfl1a6w7 Please choose any one of the elements in the periodic table and calculate the relative atomic mass of your chosen element. Show your answer (correct to 2 decimal places) with the calculation steps, just like the example below. Don't overlap your answers with your classmates, so this task is assigned on a first-come first-served basis. Please leave your full name and your class number on the top of your post, otherwise your attendance of this flipped lesson is hard to be counted. en-us 2021-03-28 17:11:19 UTC 2026-01-27 23:21:09 UTC hello@padlet.com https://padlet.net/icons/png/1f9e9.png s1132173 https://padlet.com/s1132173/mjb1vfbdrfl1a6w7/wish/1361984810 Isotopes: 
Boron-11 (80.1%)
Boron-10 (19.9%)
Relative atomic mass of Boron
= 80.1% x 11 + 19.9% x 10
= 10.80]]> 2021-03-28 20:30:18 UTC https://padlet.com/s1132173/mjb1vfbdrfl1a6w7/wish/1361984810