userdata-paziras-Chem101-Chap_09A

Mostcompounds formedbetween

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Unformatted text preview: s lowered 2. The larger the energy given o ff: Ø the more stable the ionic co mpound Ø the easier the ionic co mpound forms CONCLUSIONS 1. Formation of an Ionic Co mpound is favored by any factor that increases the Net Energy Released: (a) Low Ionization Energy (characterist ic of Metals) (b) High Electron Affinity (characterist ic of Nonmetals) (c) High Lattice Energy. The Lattice Energy depends on: Ø respective charges of ions Ø respective sizes of io ns 2. Most compounds formed between Metals and Nonmetals are Ionic Compounds Elements on the lower left­hand side of Periodic Table (Metals with low I.E.) Elements on the upper right­hand side of Periodic Table (Nonmetals with high E.A.) (Noble Gases are excluded) 9 Chemistry 101 Chapter 9 IONS OF MAIN GROUP ELEMENTS IA IIA IIIA IVA VA VIA VIIA – H Period 1 Period 2 + Li covalent covalent covalent 3– N 2– O – F Period 3 + Na 2 Mg + 3+ Al covalent 3– P 2– S – Cl Period 4 + K 2+ Ca 3+ Ga covalent As3– 2– Se – Br Period 5 + Rb 2+ Sr 3+ In 2+ Sn Sn4+ Sb3+ 2– Te I– Period 6 + Ca 2+ Ba 3+ + Tl Tl 2+ 4+ Pb Pb 3+ Bi covalent radioactive NOTE: 1. Group IA through Group IVA Ø C...
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