T. Trimpe 2008 http://sciencespot.net/ Bonding Basics T. Trimpe 2008 http://sciencespot.net/

NEGATIVE POSITIVE ION CATION ANION Answer these questions: An atom that gains one or more electrons will have a ____________________ charge. An atom that loses one or more electrons will have a ____________________ charge. An atom that gains or loses one or more electrons is called an ____________. A positive ion is called a ______________ and a negative ion is called an _______________. NEGATIVE POSITIVE ION CATION ANION “An-Eye-On” “Cat-Eye-On”

ELECTRONS COMPLETE METAL NONMETAL What is an ionic bond? Atoms will transfer one or more ________________ to another to form the bond. Each atom is left with a ________________ outer shell. An ionic bond forms between a ___________ ion with a positive charge and a ________________ ion with a negative charge. Example: Sodium + Chlorine Example: Magnesium + Iodine ELECTRONS COMPLETE METAL NONMETAL

Example: Potassium + Iodine Example: Sodium + Oxygen Example: Calcium + Chlorine Example: Aluminum + Chlorine

SHARE COMPLETE NONMETAL What is a covalent bond? Atoms ___________ one or more electrons with each other to form the bond. Each atom is left with a ________________ outer shell. A covalent bond forms between two _________________. Example: Hydrogen + Hydrogen Example: 2 Hydrogen + Oxygen SHARE COMPLETE NONMETAL

Example: Chlorine + Chlorine Example: Oxygen + Oxygen Example: Carbon + 2 Oxygen Example: Carbon + 4 Hydrogen