ConcepTest If the first ionization energy for Ca 600 kJ mol what are the predicted second and third ionization energies in kJ mol A 600 600 B 600 1200 C 1200 5000 D 5000 1200 E can t be determined without the electron attachment enthalpy Ca Ca Ar 4s1 Ca Ca2 Ar Ne 3s23p6 Ca Ca3 Ne 3s23p5 ConcepTest For which pair of ions and or atoms does the first one listed in the pair have the LARGER radius A Li2 Li B Li Na C O O2 D Cl F E F F ConcepTest For which pair of ions and or atoms does the first one listed in the pair have the SMALLER radius A Na Na B Li Na C O2 O D Cl F E F F Cations shrink anions expand Module 8 Chemical Bonding 1 2 3 4 5 6 7 8 9 Chemical Bond Formation Covalent Bonding And Lewis Structures Atom Formal Charges Resonance Exceptions To The Octet Rule Molecular Shapes Bond Polarity Electronegativity Bond Molecular Polarity Bond Properties Order Length Energy Chemical bond attraction between atoms ConcepTest With what atoms are K and Br isoelectronic A He Ne B Ne Ar C Ar Kr D Kr Xe Isoelectronic same number of electrons ConcepTest What generic formula would you expect for the ionic compound that resulted from the reaction of the appropriate number of IA M and VA X elements A MX B M3X C MX3 D M5X E MX5 F none of these ConcepTest Which pair of elements have 1 and 3 valence electrons respectively A He N B Ne B C N Be D Na B E Na Be F none of these Valence electrons not in a closed shell used to share covalent bonds or transfer ionic bonds Lewis Dot Structures dots used to represent valence electrons 1A ns1 2A ns2 3A ns2np1 4A ns2np2 5A ns2np3 6A ns2np4 7A ns2np5 8A ns2np6 Octet rule element atom seeks to be surrounded by 8 electrons in its valence shell Hydrogen can only go up to 2 electrons ConcepTest How many electrons appear in the correct Lewis dot structure for molecular nitrogen N2 A5 B6 C8 D 10 E none of these