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Bonding and Naming. DIFFERENT ELEMENTS. ATTRACTION. VALENCE. CHEMICAL REACTION. Bonding and Naming. NOT. CONSERVED. 8. Bonding and Naming. He, Ne, Ar or Kr ONLY. Kr. Elements He, Ne and Ar have oxidation number of zero. Won’t react. Least active Kr has +2.
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Bonding and Naming DIFFERENT ELEMENTS ATTRACTION VALENCE CHEMICAL REACTION
Bonding and Naming NOT CONSERVED 8
Bonding and Naming He, Ne, Ar or Kr ONLY Kr. Elements He, Ne and Ar have oxidation number of zero. Won’t react. Least active Kr has +2. Could react. Xe even more reactive. Rn radioactive. Shielding increases. F Electronegativity greatest.
Bonding and Naming RELEASED SPONTANEOUS HIGH LOWER STABILITY
Bonding and Naming RELEASED PRODUCTS HEAT CONSUMED LOW HIGHER ENERGY
Bonding and Naming CONSUMED REACTANT
Bonding and Naming MOBILE CURRENT WAVE Chemical Bond Video
Answer the following questions… • When a chemical bond forms, there is a attraction between two subatomic particles. What are these two particles? • In an EXOthermic reaction, energy is ALWAYS ________. • For an EXOthermic reaction, energy is always found on which side of the chemical reaction? • For a ENDOthermic reaction, energy is ALWAYS ________. • For a ENDOthermic reaction, energy is always found on which side of the chemical reaction? • When a electron is transferred, the atom donating the electron becomes ________. • What is the ONLY combination allowed for covalent bonds to form? • Metals always share a “______“ of mobile valence electrons. This is what allows electricity to flow.
Bonding and Naming TRANSFERED SHARED
Bonding and Naming ELECTRONEGATIVITY IONIC CHARACTER ELECTRONEGATIVITY COVALENT CHARACTER
Bonding and Naming IONIC COMPOUND COVALENT COMPOUND IONIC CHARACTER COVALENT CHARACTER
Answer the following questions… • Identify the compound associated with the given information: a. low melting point. b. hard object. c. nonelectrolyte. • When the following elements become ions, identify their new electron configuration? Which noble gas configuration does it match? a. Phosphorus. b. Rubidium (Rb). c. Bromine. • Identify the type of bond formed. Ionic or covalent? a. electronegativity difference = 2.7 b. metal + nonmetal. c. strong bonds formed. d. nonmetal + nonmetal. e. polyatomic ion + polyatomic ion. f. electronegativity difference of 1.0 • The greater the electronegativity difference between the 2 elements, the __________ the IONIC CHARACTER. • The closer the electronegativity between 2 elements to zero, the __________ the COVALENT CHARACTER. • If a compound of one metal and one nonmetal have a electronegativity difference of 1.2, would the compound be considered ionic or covalent? Why?
Bonding and Naming OXIDATION NUMBERS
Bonding and Naming UNCOMBINED ELEMENTS ZERO Na (s), O2 (g), Br2 (l)
Bonding and Naming COMPOUNDS CHARGES ZERO
Bonding and Naming +1 +2
Bonding and Naming -1 -1
Bonding and Naming +1 -1
Bonding and Naming -2 +2 -1 X2O2
Bonding and Naming ION POLYATOMIC IONS BOTH IONIC COVALENT
Bonding and Naming -2 +1
Bonding and Naming -2 -2 +5
Bonding and Naming UNIVERSAL COMMON CHEMICAL
Bonding and Naming FIRST POSITIVE NEGATIVE SECOND FLUORIDE OXIDE
Bonding and Naming ROMAN NUMERAL AFTER
Bonding and Naming NONMETAL NONMETAL 2 3 PREFIXES