There are two primary isotopes found in any sample of copper: copper-63 and copper-65. The isotope 65Cu composes 69.2% of the sample and 63Cu comprises the other 30.8%.
Based on this data, what is the atomic mass of copper?

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.