Prior to 1961, the atomic mass standard was defined as 1/16 ofthe mass of ¹⁶O. Based on that standard: (a) What was the massof carbon-12, given the modern atomic mass of oxygen is15.9994 amu? (b) What was the mass of potassium-39, given itsmodern isotopic mass is 38.9637 amu?
Atomic Structure
The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.
Shape of the D Orbital
Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.
Prior to 1961, the
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