Arrangement of Electrons

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Electron Configuration
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Arrangement of Electrons

• the electron configuration is the arrangement of
  electrons in an atom

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Where are electrons?

• The electrons occupy specific probability regions
  (known as orbitals), whose shapes and electron
  capacity vary.

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Chemical Properties

• properties of electron configuration in atoms
  form the basis for bonding.

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More about Orbitals

• Orbital shapes and electron capacity are denoted
  by the letters s, p, d, f and the as-of-yet
  unseen g, h and i.

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Electron Configuration

• The energy of an orbital is shown by a whole
  number (1-7) next to the letter.

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Energy Levels Sublevels

• 1s
• 2s 2p
• 3s 3p 3d
• 4s 4p 4d 4f
• 5s 5p 5d 5f 5g
• 6s 6p 6d 6f 6g 6h
• 7s 7p 7d 7f 7g 7h 7i

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S sublevel

• Has one orbital
• It can hold two electrons
• One arrow up represents one electron and one
  arrow down represents the second electron.

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P sublevel

• Has three orbitals
• Can hold a maximum of 6 electrons
• Each orbital must have one electron in it before
  an orbital can have two arrows in it.

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D sublevel

• Has five orbitals
• Can hold a maximum of 10 electrons
• Each orbital must have one electron in it before
  an orbital can have two arrows in it.

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F sublevel

• Has 7 orbitals
• Can hold a maximum of 14 electrons
• Each orbital must have one electron in it before
  an orbital can have two arrows in it.

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G sublevel

• Has 9 orbitals
• Can hold a maximum of 18 electrons
• Each orbital must have one electron in it before
  an orbital can have two arrows in it.

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Energy Levels Sublevels

• 1s
• 2s 2p
• 3s 3p 3d
• 4s 4p 4d 4f
• 5s 5p 5d 5f 5g
• 6s 6p 6d 6f 6g 6h
• 7s 7p 7d 7f 7g 7h 7i

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Filling of orbitals
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