ismebxtch ismebxtch 09-11-2020 Chemistry contestada Element XYZ has 3 Isotopes: XYZ-3, XYZ-4, XYZ-5. XYZ-3 has an abundance of 30% XYZ-4 has an abundance of 50% XYZ-5 has an abundance of 20% The Average Atomic Mass will be closer to:
