answersLogoWhite

0

Carbon. it is the standard to which every other element is measured against (In terms of Atomic Mass)

E.G. Each atomic mass unit is 1/12 of a Carbon-12 atom, so an atom of lead is 82 x (1/12) atoms of carbon 12

Hence, Carbon-12 must be the perfect element...

Helium, as it has full 1S orbital, does not form compounds, and has a symmetrical nucleolus.

User Avatar

Wiki User

15y ago

What else can I help you with?