Mini quiz half sheet h 1 01 g mol o 16 00 g mol s 32 07 g mol n 14 01 g mol i 126 90 g mol
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Mini Quiz- Half Sheet H = 1.01 g/ mol , O = 16.00 g/ mol S = 32.07 g/ mol , N = 14.01 g/ mol , I = 126.90 g/ mol - PowerPoint PPT Presentation


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Mini Quiz- Half Sheet H = 1.01 g/ mol , O = 16.00 g/ mol S = 32.07 g/ mol , N = 14.01 g/ mol , I = 126.90 g/ mol. How many grams in 3.4 x 10 23 molecules of H 2 SO 4 ? 2. How many molecules are there in 0.40 g of N 2 I 6 ?. Nuclear Chemistry. Unstable Nuclei.

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Mini quiz half sheet h 1 01 g mol o 16 00 g mol s 32 07 g mol n 14 01 g mol i 126 90 g mol
Mini Quiz- Half SheetH = 1.01 g/mol, O = 16.00 g/molS = 32.07 g/mol, N = 14.01 g/mol, I = 126.90 g/mol

  • How many grams in 3.4 x 1023 molecules of H2SO4?

    2. How many molecules are there in 0.40 g of N2I6?



Unstable nuclei
Unstable Nuclei

Often nuclei of very large atoms are unstable…

Unstable Nuclei  Stable Nuclei + Energy


Cause of instability
Cause of Instability

A p+ to no ratio that is not close to 1:1

Example: Polonium (Po) has 84 protons and 125 neutrons

Radioactive

Oxygen has 8 protons and 8 neutrons

Not Radioactive


Nuclear reaction
Nuclear Reaction

  • Reaction that affects the nucleus of an atom.

  • Radioactive decay: Spontaneous disintegration of a nucleus into a slight lighter nucleus.

  • Particles and energy can be emitted.

  • This is called nuclear radiation


92 uranium 238
92-Uranium-238

  • 92 protons and 146 neutrons

  • Radioactive nuclide

  • Undergoes a series of radioactive decay



Alpha particle
Alpha Particle

  • Nucleus of a Helium atom

  • 2 p+ and 2 no

  • Mass = 4, Atomic number = 2


Beta particle
Beta Particle

  • neutron to proton ratio that is too high

  • Mass = 0, number -1


Gamma radiation
Gamma Radiation

  • High energy electromagnetic waves (light)

  • No mass

  • Pure energy

    g



Balancing nuclear equations
Balancing Nuclear Equations

212-4 = 208 mass of new element

84-2 = 82 atomic number of new element






Nuclear fission
Nuclear Fission

  • Heavy nuclei splits into more stable nuclei

  • Releases enormous amount of energy



Nuclear fusion
Nuclear Fusion

2 small nuclei form a larger nuclei, producing a crazy amount of energy.


Warm up
Warm Up

What is the difference between nuclear fission and fusion?



Nuclear fusion1
Nuclear Fusion

2 small nuclei form a larger nuclei, producing a crazy amount of energy.


Questions on vegium
Questions on Vegium?

Check your calculations… do you have the right number of SF?


Check your isotope ws
Check your Isotope WS

Do you have any questions on

these calculations?


Work i m collecting
Work I’m Collecting

Vegium

Unit 2 Review

Atomic Structure WS- (3 worksheets on 1 sheet)

Isotope WS