6.1 Covalent & Ionic Bonds Use p. 145 – 147 in textbook Name _____________________________ Period ______ Date __________________ Covalent bond = Molecule = Atoms combine to become more __________________________. An atom becomes more stable when it fills it’s outer energy level with the ______________ of electrons it can hold. Trying to be more stable… two hydrogen would prefer to be together than alone! 2 Hydrogen atoms Making water = Hydrogen Making Methane= Oxygen Hydrogen Carbon How many electrons can a carbon atom share? (Hint – how many empty spaces?) Draw your own hydrogens bonded to the empty spots on the carbon to form Methane. 1 What is an ion? Ionic bond = Ionic bonds are not sharing, one takes, the other loses. Compound = Making salt = Sodium Atom 11 electrons Chlorine Atom 17 electrons How many electrons would sodium need to fill its outer energy level? How many electrons would chlorine need to fill its outer energy level? Is it easier for this atom to gain or lose an electron? Is it easier for this atom to gain or lose an electron? Ions Who gained the electron? They are the ion - ! Write its symbol here: Who lost the electron? They are the ion + ! Write its symbol here: 2