Nuclear Energy

By: Maddy Hatch, Jamie Riedle, and Alaine Ruggless

Nuclear Energy: Creation of Elements and New Elements

Nuclear energy is the energy in the nucleus, or core, of an atom. The energy is what holds the nucleus together. There are massive amounts of power in a atoms nucleus, that power is usually called the "strong force". In this presentation we talk about the Creation of Elements, and of other New Elements. We discuss the "Big Bang Theory," in how the elements were formed, and we also talk about the new advances in technology that help create artificial elements.

Big Bang Theory

Initial Elements

Other initial elements formed

Supernovae- creation of 86 naturally occurring elements

Nuclear Reactions

Main nuclear reaction in stars

Nuclear Fusion processes

Proton-proton fusion

Carbon Cycle fusion

Triple-alpha process

Main Sequence Stars

The Sun is our main sequence star

the energy from it is from the reaction called the proton-proton chain

Steps of the chain

Energy is freed during each step

Neutrino's

Protons

Photons

Proton-proton chain

Inside all main sequence stars less massive than 1.5 solar masses

Carbon Cycle

Inside all main sequence stars more massive than 1.5 solar masses

Carbon Cycle requires high temperatures

Temperature depends on which reaction happens

Big image

Energy from Stars

Protons collide creating energy

E=mc^2 explains mass in the star

Fusion of the 2 protons produces Helium

Creation of Larger Elements

Fusion

Heat cause electrons to break away from the Nuclei

Core of star heats up

Absence of electrons

Helium nuclei fuse together

Phase Changes

Fusion continues in stars

All of the mass of a star is "used up"

Hydrogen ins used in larger elements

Star turns into a white dwarf, then a black dwarf

Particle Accelertor

Device that uses electromagnetic fields

Propels charged particles

Contain particles in well-defined beams


Invented in the 1930s

Increase energy of a beam or particles


Circle Accelerator

particles travel in a continuous circle

Linear accelerator

particles travel in a long copper tube

Klystrons

generate waves for a path for the particles


Particle Accelerators in the United States

Big image

Artificially created elements

First elements to be synthesized

Technetium, promethium, astatine, francium

Also numbers 93 and above on the periodic tables

High atomic numbers have short half lives

Fusion and Bombardment of New Elements

Synthetic elements through 100

bombardment using plutonium or uranium

Synthetic elements 101 and up


Created by fusion


Today's scientists and particle accelerators

methods have not changed greatly