Happy Fake Monday! DO NOW Please take out your homework (write 3 difficult test questions) and quiz your lab group. Have homework record labeled “3 test ?s” and ready to be stamped.

Jeopardy

1. Types of Bonds What is the name of a bond where electrons are shared equally between two atoms?

Nonpolar Covalent Bonds 1. Types of Bonds Nonpolar Covalent Bonds What is the name of a bond where electrons are shared equally between two atoms? 100

What is a polar molecule? 2. Types of Bonds What is a polar molecule?

What is a polar molecule? 2. Types of Bonds A molecule with a delta positive end and a delta negative end What is a polar molecule? 200

3. Types of Bonds This type of bond occurs when an electron is transferred from a metal to a highly electronegative atom

3. Types of Bonds Ionic Bond This type of bond occurs when an electron is transferred from a metal to a highly electronegative atom 300

4. Types of Bonds What type of bond would exist between atoms with electronegativity values of 3.0 and 2.6 ?

The electronegativity difference will be 3.0 – 2.6 = 0.4 4. Types of Bonds The electronegativity difference will be 3.0 – 2.6 = 0.4 So that is a nonpolar covalent bond (A difference of 0.5 or more is polar covalent.) 400

5. Types of Bonds Why does water have a much higher melting point than carbon dioxide even though carbon dioxide is heavier?

Water is polar while CO2 is nonpolar. 5. Types of Bonds Water is polar while CO2 is nonpolar. It will take more energy to separate the water molecules from each other since the molecules are polar because the water molecules have a stronger attraction for one another. 500

1. VSEPR Can you draw the Lewis Dot Structure AND VSEPR and write the formula of a molecule with a linear shape and a 180 degree bond angle?

CO2 1. VSEPR VSEPR Lewis Dot 100

2. VSEPR What is the name of the shape of a compound with four atoms bonded to the central atom?

2. VSEPR Tetrahedral 200

Write you wager on the white board. Daily Double Write you wager on the white board.

3. VSEPR What is the molecular shape of a molecule with 3 atoms bonded to the central atom and there are no unshared pairs of electrons?

3. VSEPR Trigonal Planar 300

4. VSEPR What will be the shape of the following molecule? H2O

4. VSEPR Bent 400

Bonus 1: what’s the name of the molecule? 5. VSEPR What is the shape and bond angle for the following molecule? NH3 Bonus 1: what’s the name of the molecule?

5. VSEPR Ammonia Trigonal Pyramidal 107 degrees 500

Which compounds have very low melting and boiling points? 100 Compound Types Which compounds have very low melting and boiling points?

100 Compound Types Molecular compound 100

200 Compound Types Type of Bonds that hold together a molecular compound

Compound Types Covalent Bonds 200

300 Compound Types Bronze, steel, and 18k gold are examples of these.

Compound Types Bronze, steel, and 18k gold are examples of alloys. 300

1. Periodic Trends As you move from left to right across a period, atomic radius tends to _____________.

1. Periodic Trends Decrease 100

What element has the highest electronegativity on the periodic table? 2. Periodic Trends What element has the highest electronegativity on the periodic table?

2. Periodic Trends F flourine 200

Periodic Trends Which element has the lowest ionization energy on the periodic table?

Periodic Trends Fr 300

Mg, Al, Ca, Ga 4. Periodic Trends Of the following, which has the highest electronegativity? Mg, Al, Ca, Ga

Mg, Al, Ca, Ga 4. Periodic Trends Of the following, which has the highest electronegativity? Mg, Al, Ca, Ga

5. Periodic Trends Draw all 3 periodic trends

5. Summary of Periodic Trends 500

Nomenclature What is the name of PH3 ?

Phosphorus trihydride Nomenclature What is the name of PH3 ? Phosphorus trihydride

Nomenclature What is the name of F2O ?

Nomenclature What is the name of F2O ? Difluorine monoxide

What is the formula for dinitrogen pentoxide? Nomenclature What is the formula for dinitrogen pentoxide?

Nomenclature What is the formula for dinitrogen pentoxide? N2O5

What is the formula for xenon hexasulfide? Nomenclature What is the formula for xenon hexasulfide?

Nomenclature What is the formula for xenon hexasulfide? XeS6

Nomenclature What is the name of S2O3 ?

Nomenclature What is the name of S2O3 ? Disulfur trioxide

Good luck on tomorrow’s exam! Any additional questions? Homework = please study!