Physical Science Final Review #3

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Presentation transcript:

Physical Science Final Review #3 Naming & Bonding

Bonding Basics Covalent Ionic Metallic SHARES ELECTRONS NONMETAL + NONMETAL STRONGEST BOND! Ionic TRANSFERS ELECTRONS METAL + NONMETAL CATION + ANION Cation= + charge , loses electrons Anion= - charge, gains electrons Metallic METAL + METAL

Bonding Basics Empirical Formula: Molecular Formula Most Reduced Example: For C10H30, the empirical formula is _______________ Molecular Formula Actual formula To get possible MFs for an EF, multiply the subscripts Ex: Name 3 possible MFs for the EF of CH2 ________________________________

NAMING IONIC COMPOUNDS NO PREFIXES! For Binary (like NaF) First element name + second element name but change the ending to –ide NaF= __________________________ For Ternary (like Na(NO3)) First element name + polyatomic name NO changing ending Na(NO3) = _____________________________

FORMULAS FOR IONIC COMPOUNDS CROSS CHARGES ON ELEMENTS You will be given periodic table with element charges! Ex: Mg+2 and Cl-1 Ex: Al+3 and CO3-2

NAMING COVALENT COMPOUNDS USE PREFEXIES 1= mono 2= di 3=tri 4=tetra 5=penta 6=hexa When naming you do: prefix (unless 1) element name + prefix (always), element name, end in ide Examples P2O3 IF5 CCl4 S5N6 H2O

Br2 I2 N2 Cl2 H2 O2 F2 Remember, these come in pairs and are named by the element name. NO PREFIXES: Examples: O2: Fluorine: Br2: Hydrogen: