Chapter Five - Chapter Five 1 Valence Electrons outermost shell electrons 2 Core Electrons in all other shells 3 Isoelectronic has the same electron

Chapter Five - Chapter Five 1 Valence Electrons outermost...

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Chapter Five 1. Valence Electrons- outermost shell electrons 2. Core Electrons- in all other shells 3. Isoelectronic- has the same electron configuration as noble gases 4. Electron-dot Symbols (Lewis Symbols)- use dots singly or in pairs to represent valence electrons of an atom or ion. 5. Ionic Bond- ions formed have opposite charges and are strongly attracted to one another 6. Crystal- positive and negative ions arrange themselves in a regular array 7. Octet Rule- ions formed tend to have eight valence electrons 8. Binary Compound- contains two different elements a binary ionic compound contains cations from a metal from a metal and anions from a nonmetal. 9. Formula-represents the number and type of ions in the compound 10. Covalent bond- nonmetal atoms can bond by sharing pairs of electrons 11. Single-bond-one pair of shared electrons 12. Double Bond- two pairs of shared electrons 13. Triple Bond- three pairs of shared electrons 14. Bonding Pairs- shared pairs of electrons 15. Nonbonding Pairs (lone pairs)- unshared pairs
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