OBJECTIVE:  I will work with my team to review our Big Bang 6 instances

I will review how the strong force and the weak force work together in nucleosynthesis

I will work with my team and my classmates to determine just how far down the weak-force rabit hold we want to go.

WORDS FOR TODAY:

• Planck Time
• Proton (a non-fundamental particle, contains u-u-d quarks, has +1 charge)
• Electron (a fundamental particle of nature, has -1 charge)
• Neutron (a non-fundamental particle, contains d-d-u quarks)
• Up Quark (a fundamental particle of nature, has + 2/3 charge)
• Down Quark ((a fundamental particle of nature, has -1/3 charge)
• Strong Force (between quarks)
• Weak Force (not exactly a force)
• Electromagnetic force (between protons & neutrons)
• Gravity (between objects with mass)
• Nucleosynthesis (creating new atoms)
• Fusion (atoms smashing together - a more general term for nucleosynthesis)
• isotope (an atom with the same number of protons but different numbers of neutrons)
• Gluons ('moderate' the strong force)
• Weak Force Stuff (Z⁰, W⁺, W^-, neutrinos, positrons, gamma rays,

WORK O' THE DAY: 

APOD

Let's work to get a class consensus-- up to the whiteboard please (and bring your slips)

═══════════════════════════

Let's review isotopes:

Compare this: ⁴He with this: ²H in terms of the type and number of each type of particles that make up the nucleus of those atoms.

GO!

 

 

REVIEW:

atom	atomic symbol	0 neutrons	1 neutron	2 neutrons	3 neutrons
hydrogen	H	1H or just H	2H	3H	--
helium	He	2H or He	3He	4He	5He

Notice that the superscript shows the total number of particles (p⁺ and n⁰) in the nucleus

Weak Force - I initially said that we wouldn't get into the weak force since it can be a veritable (great word!) morass (another great word!) of technical terms and conditions.

I'll outline the goings on during weak force interactions and then we can elect and otherwise determine whether we'd like to make that of our coursework (or not!)

Yesterday I had you diagram what you thought might represent the reactants and results of a hydrogen fusion nuclear reaction:

H

Hint: where does the energy come from?

 

Here's an interesting learning target that I learned from the NGSS standards: The total number of nucleons in a nuclear reaction is conserved.

Huh?

Let's discuss.

I *did* say we weren't going to go into the weak force, but,. well, ya know, I thought I'd have us all take a gander at THIS, and we can decide whether we want to move on or not....