Pre – AP Physical Science

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Presentation transcript:

Pre – AP Physical Science Bond Types

electrons occupy lowest energy levels available Basic Principle: electrons occupy lowest energy levels available

Aufbau Principle – “Diagonal Rule” 4

2 ways to write electron configurations 1 s value of energy level sublevel no. of electrons spdf NOTATION for H, atomic number = 1 1) spdf Notation Orbital Box Notation Arrows show electron spin ORBITAL BOX NOTATION for He, atomic number = 2 1s 2  5

The Octet Rule Atoms tend to gain, lose or share electrons until they are surrounded by eight valence electrons.

Valence Electrons Valence electrons are found in the incomplete outermost shell of an atom.