Atomic Structure

Mass Spectroscopy

Mass Spectrometry A mass spectrometer machine can be used to analyse elements or compounds. Time Of Flight (TOF) mass spectrometry ...
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Hund’s Rule

Every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all ...
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Spin Diagrams

Spin diagrams give a visual representation of electron configurations along a graph. Each arrow represents an electron in the atom ...
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Energy Levels

The energy levels are called Principle Energy Levels The principal energy levels contain sub-levels. Each principal energy contains a different ...
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Relative Atomic and Molecular Masses

Avogadro's number: 6.02x1023 (Ar) Relative Atomic Mass mass of the protons and Neutrons Mean mass of 1 atom of the ...
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Relative Masses

The relative mass of an electron is sometimes quoted as zero as its weight is very nearly zero especially compared ...
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