A Chemistry student at Agora is calculating the average atomic mass of Potassium using the following data. Relative abundance Isotope K-39 K-41 Their setup and calculation are. Mass (amu) 93-12% 6.88% 38.964 40.962 X Atomic Mass 38.964 amu 40.962 amu Relative Abundance ( divide by 100) 0.0688 0.9312 = 2.681 = 38.144 40.823 amu The student calculated the average atomic mass to be 40.823 amu but it is 39.098 amu on the periodic table. What did the student do incorrectly? Use CER!

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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.