PPT-3.5 - 3.7 Formula Writing (Ionic Compounds)

Steps 1 Cation is written before anion 2 Charges must cancel ionic compounds are neutral 3 Atoms must be in smallest whole number ratio Write the formula units for the following ionic compounds 1 lithium chloride 2 strontium oxide 3 ammonium phosphate. Anions. Cations. Naming Ions. Naming Ionic Compounds. Writing Ionic Formulas. Identify some Anions and . Cations. Anions. Cations. Metals Lose Electrons . (. Cations. = +). Nonmetals tend to gain electrons (Anions = -). IUPAC. BOHR DIAGRAMS FOR ATOMS. TYPES OF CHEMICAL BONDS. MOLECULAR COMPOUNDS. TYPES. SIMPLE COVALENT. COMMON NAME. IONIC COMPOUNDS. SIMPLE IONIC. MULTIVALENT. POLYATOMIC/COMPLEX. HYDRATED IONIC. ACIDS. Ionic Bonding and Writing Formulas. Common Anion Name Changes. Nitr. ogen .  . Phosph. orus .  . Ox. ygen .  . Sulf. ur .  . Selen. ium .  . Fluor. ine .  . Chlor. ine .  . Brom. Lecture Presentation. Chapter 3. Molecules, Compounds, and Chemical Equations. How Many Different Substances Exist? . Elements combine with each other to form . compounds. . . The great diversity of substances that we find in nature is a direct result of the ability of elements to form compounds. . Ionic bonds . result when electrons are transferred between atoms. Covalent bonds . result when valence electrons are shared between atoms. Types of Bonds. Formed between a . metal. and a . non-metal. cation. bonds with Bromine.. Write the formula for . . gold(I) sulfide.. In the ionic compound Co. 3. N. 2. ,. which . cation. is present? . . Co (II) or Co (III). Ionic Bonds Containing . Transition Metals. Chapter 7. An . ion. is an atom that has gained or lost electrons from the valence shell.. Valence electrons. are the electrons contained in the highest occupied energy level. These electrons will mostly determine the chemical properties of the element. Chapter 5: Molecules and Compounds. Learning Goals. Write . chemical formulas.. Determine . the total number of each type of atom in a chemical formula.. Classify . elements as atomic or molecular.. Classify . I. Percent Composition. Think about this:. How would you find the percent of boys in our class?. # of boys (part)____. x 100% . Total # of students (whole). I. Percent Composition. . 3-. 2. Questions for Consideration. How do ionic compounds differ from molecular compounds?. What kinds of ions are in ionic compounds?. What do formulas for ionic compounds represent?. How are ionic compounds named?. When elements combine to form compounds a chemical reaction occurs creating a new compound with properties that are different from the original elements.. When a new compound is formed it has a new chemical formula. A . Section 5.1: Ionic Compounds. Objectives: Apply ionic charge to writing formulas for ionic compounds, Apply formulas to name ionic compounds, Interpret the information in a chemical formula. Ionic Compound Formulas. Augustine. Section 7.1 - Ions. Valence electrons. are the electrons in the . highest. occupied energy level.. Valence electrons. are the only electrons involved in . chemical bonding. .. Elements in the same . Sharing Electrons. The names of molecular compounds need prefixes because several different compounds can be formed from the same two nonmetals. .. Learning Goal . Given the formula of a molecular compound, write its correct name; given the name of a molecular compound, write its formula..