×

### Let's log you in.

or

Don't have a StudySoup account? Create one here!

×

or

## Chemistry, Week 4

by: eshumaker1328

3

0

3

# Chemistry, Week 4 CHM 115 04

eshumaker1328
GVSU

Get a free preview of these Notes, just enter your email below.

×
Unlock Preview

Red- important Green-definitions pink-equations
COURSE
Principles of Chemistry I
PROF.
Dr. Barrows
TYPE
Class Notes
PAGES
3
WORDS
KARMA
25 ?

## Popular in Chemistry

This 3 page Class Notes was uploaded by eshumaker1328 on Friday September 23, 2016. The Class Notes belongs to CHM 115 04 at Grand Valley State University taught by Dr. Barrows in Fall 2016. Since its upload, it has received 3 views. For similar materials see Principles of Chemistry I in Chemistry at Grand Valley State University.

×

## Reviews for Chemistry, Week 4

×

×

### What is Karma?

#### You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/23/16
Tuesday, September 20, 2016 CHEMISTRY, WEEK 4 Post Lecture Quiz [PLQ] - an electron transition from a ground state to an excited state is an endothermic process - an emission line occurs when an electron transitions from a higher energy state to a lower energy state - an atom can have more than one possible excited states - the higher the change of orbital, the greater the change in energy Bohr’s Model [6.2] - cannot start half way between two transitions, it has to be at a whole number state - if the probability is greater, the band of emission is brighter - shortest wavelength — highest frequency — highest energy — biggest jump - En = -2.18 x 10^-18 J(1/n^2) • Excited State: higher than ground state • Ground State: lowest energy possible • plug in n’s into 2 different equations and then ﬁnal minus initial state • E [photon] = | change in E of atom | - Negative Energy? E (inﬁnite)= 0 - exothermic — transition from high to low energy state [-] - endothermic — transition from low to high energy state [+] Good Bad The Ugly the energies of electrons (energy why do electrons orbit only aWhy are electrons orbits stable? levels) in an atom are quantizespeciﬁc distances from the - Coulomb’s Law predicts that nucleus? electrons should fall into the nucleus - Electron’s orbiting without loss of energy violates Law of Conservation of Energy 1 Tuesday, September 20, 2016 Good Bad The Ugly an electron’s energy increases why can it only predict a spectrElectrons have wave like nucleuscreasing distance from thH, He+, Li 2+)?tron systems (e.g- electrons undergo diffraction and interference - de Broglie (1924) • λ=(h/mv) - Note: v (velocity) m (mass) h (Planck’s constant) • anything moving has a wavelength.. even you • standing waves - always have a position where it doesn’t move: node - thought of as “stable” - Schrodinger’s Cat (1935) • s, p, d, f • accurately predicts energies of electrons • “it’s both dead and alive” • reﬁned version of de Broglie - Heisenberg’s “Uncertainty Principle” • cannot tell where it’s going and how fast it’s going - Diagrams • White is where a node is [touches the x-axis on a graph] - where electrons cannot be 2 Tuesday, September 20, 2016 Development of Quantum Theory [6.3] Quantum Numbers [can give Analogy allowable energies of electrons] Principal 1.n (energy level, shell) SIZE OF HOUSE 1. symbol 2. n=1,2,3.. (whole numbers on (n2 is bigger than n1) 2. possible values up) 3. property 3. energy of electron Angular 1. l (sublevel, subshell) SHAPE OF A HOUSE 1. symbol 2. l=0,… n-1 (duplex, two story, etc.) 2. possible values 3. shape ( & energy in some 3. property cases [2+ electrons]) S, P, D, F Magnetic 1.ml (m, sub l) ORIENTATION OF HOUSE 1. symbol 2. -l, …, 0, …, l (N, E, S, W) 2. possible values 3. orientation 3. property 3

×

×

### BOOM! Enjoy Your Free Notes!

×

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

## Why people love StudySoup

Steve Martinelli UC Los Angeles

#### "There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Jennifer McGill UCSF Med School

#### "Selling my MCAT study guides and notes has been a great source of side revenue while I'm in school. Some months I'm making over \$500! Plus, it makes me happy knowing that I'm helping future med students with their MCAT."

Steve Martinelli UC Los Angeles

#### "There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Parker Thompson 500 Startups

#### "It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!
×

### Refund Policy

#### STUDYSOUP CANCELLATION POLICY

All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email support@studysoup.com

#### STUDYSOUP REFUND POLICY

StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here: support@studysoup.com

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to support@studysoup.com