100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
CEM 141 CHAPTER 2 AND 3 LEARNING OBJECTIVES Questions And Answers Rated A+ New Update Assured Satisfaction $7.99   Add to cart

Exam (elaborations)

CEM 141 CHAPTER 2 AND 3 LEARNING OBJECTIVES Questions And Answers Rated A+ New Update Assured Satisfaction

 2 views  0 purchase
  • Course
  • CEM 141 MSU
  • Institution
  • CEM 141 MSU

CEM 141 CHAPTER 2 AND 3 LEARNING OBJECTIVES Questions And Answers Rated A+ New Update Assured Satisfaction

Preview 1 out of 4  pages

  • September 10, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CEM 141 MSU
  • CEM 141 MSU
avatar-seller
Hkane
CEM 141 CHAPTER 2 AND 3 LEARNING
OBJECTIVES
- ANS-1s orbital

- ANS-P Orbitals

- The Big Bang
- 1 picosecond after no atoms
- 1 microsecond there were protons and neutrons
- Few minutes there was H O He and Li
- For 400K years temps dropped as the universe expanded.
- A billion years after, matter began to clump together.
- Gravitational attraction raised temp and stars formed.
- Within the stars, fusion restarted.
- Hydrogen formed Helium
- 3 helium nucleli could fuse to form carbon nuclei. - ANS-The chain of events that led from the
big bang to the atoms that make up our body:

#of protons - # core electrons - ANS-How to calculate Zeff:

Adding two nuclei together.
-At very high temps, electrons on atoms are stripped away (they have so much energy that they
can overcome the attraction to the nucleus) resulting in a plasma. - ANS-Nuclear fusion

Are low in energy and close to the nucleus- within the closed shell. - ANS-Core electrons

Atoms of a particular light cannot emit or absorb any wavelength of light. Spectra shows light
only of specific wavelengths/ energies. - ANS-Why is spectra direct evidence for the existence
of quantized energy levels in an atom?

Breaking a nucleus apart.
-The fragmentation of heavy nuclei to form lighter, more stable ones and energy.
-Neutrons released in the fission can induce more fissions leading to a chain reaction. -
ANS-Nuclear fission

Claim: Electromagnetic radiation is a particle.
Evidence: Photoelectric Effect
- When short wavelength shines on a metal surface, electrons are emitted. If the light intensity is
increased, more electrons are emitted. There is a threshold frequency below which no electrons
are ejected.

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 Hkane. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79879 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
$7.99
  • (0)
  Add to cart