Do Now Grab a whiteboard. Take out your notes, a pencil and a calculator. Draw a periodic trend around a PTE. Label it with the atomic property.

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Presentation transcript:

Do Now Grab a whiteboard. Take out your notes, a pencil and a calculator. Draw a periodic trend around a PTE. Label it with the atomic property.

Review Day I have selected the parts of Ch. 5 and Ch. 6 that I believe we should review the most. Take notes and use the whiteboards to practice too.

Key Concepts Orbitals Energy Levels Electron Configurations Orbital Notations C=λv and E=hv

Key Concepts Bohr and Schrodinger Models Metals, Non-Metals & Metalloids Groups of the PTE Ions-Groups, cations vs. anions Periodic Trends

Key Concepts Pauli Exclusion Principle Hund’s Rule Aufbau Principle Emission Spectra

Orbitals There are 4 e- blocks: How many orbitals are in each? What to they look like?

Energy Levels Think rings of the Bohr Model. D block occupies 1 less row. F block occupies 2 less rows. Explain…

Electron Configuration Aufbau Principle: Order of e- confinguration.

Write the e- Configuration O With Noble Gas Short Cut: Pd

Valance Electrons The electrons on the outer most energy level of an atom. Determine bonding behavior. Only s and p orbitals matter for this. How many in: PbSeRnMd

Orbital Notation Pauli Exclusion: Hun’s Rule: Write the Orbital Notation S Na

What’s Wrong? Pauli, Hund or Both?

C=λv and E=hv C-constant=2.998x10^8m/s λ-wavelength in meters v-frequency in Hertz or 1/s E-energy in joules h-Plank constant=6.626js

Tips Make sure that the wavelength is in meters before starting calculations. Write knowns, unknown, equations, algebra, plug in numbers. LABLE ANSWER WITH UNITS.

The energy of a wave is 2x10^(-22)j. What is the frequency of the wave?

The wavelength of a wave is 3x10^(-6). What is it’s energy?

Bohr Model Electrons orbit the nucleus. Orbits are the energy levels. Draw the Bohr Model for K.

Schrödinger Orbitals, not orbits. e- has a 90% chance of being found in an orbital. Each orbital has 1 box in orbital notation, occupied by up to 2 electrons.

Trends See p. 178 for formal trends. View the class from above (in your head) There is a trend in the way that you, the students are arranged. Get up and talk to people and figure it out.

Front Board DoorMr. BWindows

Atomic Radius

Ionization Energy

Electronegativity

Density

Melting/Boiling Point

Metals, Non-Metals & Metalloids

Groups of the PTE

Ions Elements with a non-neutral charge. Cations-positive charge Anions-negative charge Groups have (for the most part) the same ionization charges. Why?

Identify the Ion’s Charge Charge of an alkaline earth metal: Charge of a halogen: Electron configuration of an ionized sodium atom:

Questions I didn’t address???

A wave has an energy of 3.7x10^(-18)m. Where is it on the electromagnetic spectrum?