The relative atomic mass is the weighted average mass of elements relative to 1/12th the mass of a 12-C atom.
Isotopes are atoms of the same element with different masses , in other words different numbers of neutrons.
Relative atomic mass =sum of (mass x percentage )
R.a.m = 62.9300 x 69.15% + 64.9200 x 30.85%
= 43.52 + 20.03
= 63.55 amu
Start by adding ten to 90 then subtract ING one
Answer:
it's a D answer if it's wrong please can you understand my question please
1012/22 = 46
46 beads will be used in each necklace
hope this helps
