100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
CEM 141 Exam 3 Practice Questions & 100% Verified Correct Answers with complete solutions (Latest update CA$11.59   Add to cart

Exam (elaborations)

CEM 141 Exam 3 Practice Questions & 100% Verified Correct Answers with complete solutions (Latest update

 1 view  0 purchase

CEM 141 Exam 3 Practice Questions & 100% Verified Correct Answers with complete solutions (Latest update

Preview 1 out of 3  pages

  • August 15, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
All documents for this subject (50)
avatar-seller
topgradesdr
CEM 141 Exam 3 Practice
Regions of space where electrons with a particular quantized energy are most likely to be found
- ANS-Atomic Orbitals

Electrons occupy lowest level orbitals first - ANS-Aufbau Principle

Electrons don't pair up until they have to - ANS-Hund's Rule

Close to the nucleus - ANS-Core

Higher in energy and far away from the nucleus - ANS-Valence

Represents the state where the FORCES OF ATTRACTION between the electrons and protons
are EQUAL to the FORCES OF REPULSION between the electrons & Increases as you go
DOWN and decreases ACROSS a row - ANS-Atomic Radius

Explains the attractions between the protons and electrons & the repulsions between the
electrons - ANS-Coulomb's Law

Tells you how many protons are attracted to the valence electrons (# of protons - # of core
electrons) & INCREASES as you go across - ANS-Effective Nuclear Charge

"Hold on to their electrons" tightly because the electrons are more strongly attracted to the
nucleus - ANS-Atoms with a high ENC

INCREASES as you go ACROSS (because you need more energy to remove an electron thats
held tightly to the nuclues) & DECREASES as you go DOWN - ANS-Ionization energy

Because there is an exact amount of energy to send an electron out an atom, means they exist
in discrete energy levels - ANS-Why are ionization energies evidence for the quantization of
energy levels in atoms?

Adding 2 nuclei together (as 2 nuclei move toward each other the PE increases because its a
repulsive force between 2 positive charged particles) - ANS-Nuclear fusion

Breaking apart - ANS-Nuclear fission

Nucleus of atom gives off energy - ANS-Nuclear decay

To become as stable as possible - ANS-Why do fusion and fission both release energy?

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller topgradesdr. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$11.59. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75632 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$11.59
  • (0)
  Add to cart