Drill: Determine wavelength of a 221 g ball traveling at 60.0 m/s.

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Presentation transcript:

Drill: Determine wavelength of a 221 g ball traveling at 60.0 m/s.

Review & Collect Drill & HW

CHM II HW Review PPs 13 & 14 Complete the attached assignment & turn it in tomorrow

Are there any questions on previous material?

Chemical Periodicity

Atomic Size Size increases as you go down in any column Size decreases from left to right in any row

Ionic Size Size increases as total charge decreases C +2 > C +4 F -1 > F

Rank the elements from their atomic number from smallest to largest 9, 55, 13, 11, & 1

Ionization Energy The energy required to remove electrons from atoms or ions

1st Ionization Energy Decreases as you go down any column Increases from left to right on any row Fr <<<<<<<<<<<<<He

Shielding Effect The further away an electron is from the nucleus, the more electron clouds lie between the electron & the nucleus

Ionization Energies 2nd > 1st 3rd > 2nd Massive increase when a shell is emptied

Electron Affinity The attraction of electrons by an atom

Electron Affinity Decreases as you go down any column Increases from left to right across any row Fr <<<<<<<<<<<< F

Drill: Arrange the following atoms from lowest to highest 1 st ionization energies: 2, 20, 14, 55, 7

Review & Collect Drill & HW

CHM II HW Review PPs 13 & 14 Complete the attached assignment & turn it in tomorrow

Are there any questions on previous material?

Electronegativity The attraction of shared pairs of electrons by an atom

Electronegativity Decreases as you go down any column Increases from left to right across any row Fr <<<<<<<<<<<< F

Drill: Describe the trends of the first four ionization energies of aluminum

Metallic Character Increases as you go down any column Decreases from left to right across any row

Reactivity Metals 1A > 2A > 3A Metals increase down Nonmetals increase as you get closer to F

Drill: Place the following in largest to smallest order with respect to: 1) diameter 2) 1 st ionization energy 3) electronegativity 4) metallic character Elements #: 1, 4, 8, 15, 55

Review & Collect Drill & HW

Test Tomorrow

Test Review

Choose the higher of each pair in: ________ Na-Cl Fe-Cr S-ClH-Cl Mg-SSi-Cl N-OFe-Ru

Draw the electron configuration for: Cl-17Fe-26Ra-88 (Cr-24) +3 (Te-52) -2

Draw the electron dot diagram for: Cl-17Fe-26Ra-88 Cr-24Te-52As-33

Calculate the energy of IR radiation with a wavelength of 996 nm. c = 3.00 x 10 8 m/s h = 6.63 x Js

Calculate the mass of IR radiation with a wavelength of 996 nm. c = 3.00 x 10 8 m/s h = 6.63 x Js

Calculate the volume of gas released at 227 o C under 83.1 kPa when 770  g of octane (C 8 H 18 ) is burned.