Ionic Bond and Ionic Compounds PDF

Ionic Bond and Ionic Compounds OBJECTIVES Explain the formation of ionic bonds and ionic compounds; Explain the octet rule; Describe how binary and ternary compounds are formed and write their formula; Determine the uses of ionic compounds in the body and industry  Everyone is seeki...

Ionic Bond and Ionic Compounds OBJECTIVES Explain the formation of ionic bonds and ionic compounds; Explain the octet rule; Describe how binary and ternary compounds are formed and write their formula; Determine the uses of ionic compounds in the body and industry  Everyone is seeking stability. Stability refers to the strength to stand or resistance to chemical change or physical disintegration. Octet Rule - It refers to the tendency of atoms to prefer to have eight electrons in the valence shell. Chemical Bond Strong force that bonds the compounds together. Atoms gain, lose or share their electrons with other atoms. 3 Things To Consider When Identifying A Chemical Reaction 1.Valence electrons 2.Noble gas configuration 3.Formation of Lewis Structure 1. Valence electrons are the electrons in the outermost shell, or energy level, of an atom. 2. Noble Gas Configuration Group 8A or Group 18 – located in the last column of the periodic table. Sometimes called inert gases. They do not easily react to other elements under normal conditions. They are the most stable due to having the maximum number of valence electrons their outer shell can hold.  ARRANGEMENT OF ELECTRONS IN NOBLE GASES IONIC CHARGES Compounds – Elements react with one another forming a new substances. Ionic bond - A chemical Bond that form when there is transfer of electrons from one atom to another. This formation always involves bonding between a metal and a nonmetal. IONIC COMPOUNDS -It involves the gaining and losing of electrons. -Charge particle will now be called ions. Cation -Atom that loses an electron becomes a positively charged ion. Anion - Atom that gains an electron becomes negatively charge ion. Upon reaction Metallic elements lose electrons due to low ionization energy Non-metallic elements gain electrons due to low ionization energy LEWIS ELECTRON DOT STRUCTURE A system known as LEDS, proposed by Gilbert N. Lewis, is used to emphasize the atom’s valence electrons. It is a shorthand method consists of a symbol of the element surrounded by dots. 𝑁𝑎 + 𝐶𝑙 = 𝑁𝑎𝐶𝑙 + −  FORMATION OF IONIC COMPOUNDS Ionization + Na 2,8,1 energy 𝑁𝑎 (loses electron) 𝑁𝑎𝐶𝑙 Cl 2,8,7 Electron affinity − (gains electron) 𝐶𝑙 Chemical Formulas Ionic Compounds are compounds composed of ions or charged particle. Solid at room temperature and have high boiling and melting points. Ionic compounds are poor conductors of electricity but when dissolved in water, these compounds conduct electricity since ions are free to move and carry the eergy. Important Ions and Ionic Compounds 𝑁𝑎 - Controls and regulates bodily fluids + 𝐾 - Controls and regulates bodily fluids + particularly the osmotic balance in the kidneys. 𝐶𝑎 - Components of bones and teeth. 2+ 𝑀𝑔 − Components of chlorophyll; plays 2+ assisting role for metabolic function. 𝐶𝑙 - Most abundant anion. −  𝑵𝒂𝑵𝑶𝟑 (𝒔𝒐𝒅𝒊𝒖𝒎 𝑵𝒊𝒕𝒓𝒂𝒕𝒆) - Used as a meat preservative. 𝑪𝒂𝑭𝟑 (𝒄𝒂𝒍𝒄𝒊𝒖𝒎 𝒇𝒍𝒖𝒐𝒓𝒊𝒅𝒆) – component of toothpaste. 𝑨𝒈𝑩𝒓 & 𝑨𝒈𝑪𝒍 (Silver halides)- Used in the photographic industry to make films. 𝑵𝒂𝑶𝑯 (Sodium hydroxide) – Used in the manufacture of soaps. 𝑨𝒍𝟐 𝑶𝟑 ( Aluminum oxide) – one of the most used compounds in engineering processes like in the making of airplanes due to its light weight. END OF PRESENTATION ☺