Essays Tagged: "Neutron"

Nucelar Energy

e fission of atomic nuclei produces a self-sustaining nuclear chain reaction, in which the produced neutrons are able to split other nuclei. A fission reactor consists basically of (1) a fuel, usually ... ding; (2) a moderator--a substance such as graphite, beryllium, or heavy water--that slows down the neutrons so that they may be more easily captured by the fissionable atoms; and (3) a cooling system ...

(1 pages) 45 0 5.0 Jan/1996

Subjects: Science Essays > Physics

The Threat of Nuclear Weapons

ON WEAPONSFission weapons cause an explosion by the splitting of atomic nuclei. This happens when a neutroncollides with the nucleus of an atom. The protons in the nucleus are transformed into a great ... atom. The protons in the nucleus are transformed into a great amount of energyand two or three more neutrons are sent out, which go on to split other nuclei. If this continues a process calleda chain ...

(3 pages) 90 0 3.7 Apr/1996

Subjects: Law & Government Essays > Military & International Conflicts & Security

Fission or Fusion

18.7 million kilowatt-hours as heat. Second, the fission process initiated by the absorption of one neutron in uranium-235 releases about 2.5 neutrons, on the average, from the split nuclei. The neutr ... this manner quickly cause the fission of two more atoms, thereby releasing four or more additional neutrons and initiating a self-sustaining series of nuclear fissions, or a chain reaction, which res ...

(5 pages) 51 0 4.5 Mar/1997

Subjects: Science Essays > Physics

Nuclear energy

18.7 million kilowatt-hours as heat. Second, the fission process initiated by the absorption of one neutron in uranium-235 releases about 2.5 neutrons, on the average, from the split nuclei. The neutr ... this manner quickly cause the fission of two more atoms, thereby releasing four or more additional neutrons and initiating a self-sustaining series of nuclear fissions, or a chain reaction, which res ...

(1 pages) 45 0 4.2 Apr/2003

Subjects: Science Essays > Technology

A paragraph about Louis Slotin and his life.

the first test bomb.One of Slotin's experiments involved joining two pieces to the point where the neutron count increased to a critical state. This procedure was done bare-handed and it was called " ...

(1 pages) 23 1 3.0 Dec/2003

Subjects: History Term Papers > North American History

Information On The Manhattan Project

power and atomic fission. Fission is the process by which the nucleus of a heavy element absorbs a neutron, which forces it to split into two nearly equal halves. Scientists discovered that when an a ... ction was to be controlled and keep from blowing everyone up, something needed to absorb the excess neutrons so that fission didn't progress too rapidly. He wanted to test graphite, but when he waited ...

(3 pages) 44 0 4.5 Apr/2004

Subjects: History Term Papers > North American History

Exploring the Crab Nebula

wave sweeps through the star at high speed, blasting away the various layers into space, leaving a neutron core, and an expanding shell of matter known as a supernova remnant.On a summer night in imp ...

(7 pages) 41 0 5.0 Apr/2004

Subjects: Science Essays

Excellent study notes for all science topics in year 10

nd in the form of molecules.· An atom consists of a nucleus, which is made up of protons and neutrons.· Protons are positively charged particles. Neutrons have no charge. There is an out ... rge.· The protons and electrons weigh more or less equal and the total number of protons and neutrons put together make the atomic weight, e.g. if an atom has two protons and two neutrons, the ...

(17 pages) 157 0 3.9 May/2004

Subjects: Science Essays

A basic essay discussing how the brain sends messages throughout the body, how chemicals affect the brain, and explains the left and right brain.

ssages from a transmitting nerve cell to a receiving nerve cell. They spreads out across to another neutron which the neurotransmitter attached itself to and starts a receptor on the neuron and makes ...

(7 pages) 123 0 3.7 Jun/2004

Subjects: Science Essays > Biology > Human Biology

Chemistry 10 Notes on Atomic Structure and Half Life.

pea Orbitals = the rest of the stadium Relative Mass Protons 1 Neutrons 1 Electrons 1/1839 (1/2000) Not taken into account cuz it doe ... All atoms w/ same # of protons = 1 type of element When mass is higher, usually more neutrons than protons Neutrons are glue that hold the nucleus together (+) charge of p ...

(1 pages) 16 0 0.0 Sep/2004

Subjects: Science Essays > Chemistry

Nuclear Power.

st important issue that has brought by using nuclear energy. In the atomic model, when an element's neutron is more than its proton, it is called an unstable isotope. Unstable isotopes lose or gain ne ...

(2 pages) 37 0 3.4 Dec/2005

Subjects: Science Essays > Physics

A Nuclear Reactor.

the uranium atom to form two lighter "fission !fragments" as well as less massive particles as the Neutrons). In the Nuclear Reactors this splitting is induced by the interaction of a neutron with a ... term used to describe the splitting of a heavy nucleus into two or more smaller nuclei. Slow moving neutrons are more easily captured by the nucleus. A moderator is a medium which causes neutrons to t ...

(6 pages) 26 0 3.8 Jan/2006

Subjects: Science Essays > Chemistry

Nuclear Reactor

the uranium atom to form two lighter "fission !fragments" as well as less massive particles as the Neutrons). In the Nuclear Reactors this splitting is induced by the interaction of a neutron with a ... term used to describe the splitting of a heavy nucleus into two or more smaller nuclei. Slow moving neutrons are more easily captured by the nucleus. A moderator is a medium which causes neutrons to t ...

(6 pages) 41 0 5.0 Feb/2006

Subjects: Science Essays > Chemistry

Science: 8th Grade Study Guide

into a table)Safety: to prevent accidentsScience: trying to understand the world around youChapter 8Neutron: *think*: neutron/neutral (no charge)Proton: positive charge *think*proton/positiveElectron: ...

(4 pages) 32 0 4.5 Mar/2006

Subjects: Science Essays > Earth Sciences

Study notes for Chemistry test. Basic definitions and notes on group structure and chemical bonding. For year 10 these achieved a level 6+ or an A+ (The spaces are for atomic drawings).

and is composed of tiny particles of matter. An atom is composed of three types of matter Protons, Neutrons and electrons.Nucleus- The dense positively charged center of an atom.Proton (P+)- Located ... has an overall positive charge when it loses electrons from its valence shell in chemical reactions.Neutron (N)- Neutrons reside in the nucleus with protons and have a neutral charge.The number of Neu ...

(4 pages) 42 2 4.4 Apr/2006

Subjects: Science Essays > Chemistry

“Primordial Deuterium And The Big Bang”

ribe the amount of matter in the universe. Eta is the ratio of how many protons there are for every neutron. Currently there is no agreement as to the precise value of eta, but Dr. Hogan's studies on ... batomic particles were able to combine. The majority of the elementary particles formed protons and neutrons, with the more stable protons outnumbering the neutrons 7:1.After a few minutes, the univer ...

(3 pages) 530 0 3.0 Nov/2001

Subjects: Science Essays > Physics

Complete Overview of Year 11 Chemistry

he mass of a hydrogen atom and a charge equal in magnitude (but opposite) to that of an electron. A neutron is a small neutral particle which has the exact same mass as a proton. Protons and neutrons ... ic numberThe mass number of an atom is the weight of the nucleus of the atom – the protons and neutrons. The electrons are not counted in the mass number because they make up such an insignifican ...

(20 pages) 22 0 1.0 Sep/2008

Subjects: Science Essays > Chemistry

What are the benefits and limitations of nuclear technology in generating energy?

ne of the isotopes of Uranium, 235U. Nuclear power plants use 235U because in a fission reaction, a neutron is absorbed by a nucleus of 235U, and the resulting nucleus of 236U is unstable and splits a ... kinetic energy of the two lighter nuclei, and some is emitted as gamma radiation. If more than one neutron from each fission causes fission in surrounding nuclei, then the reaction escalates, and thi ...

(6 pages) 26 0 0.0 Nov/2008

Subjects: Science Essays

Quasar Computers Scenario

MonopolyIn 2003 Quasar Computers launched the world's first all-optical notebook computer. The 'Neutron,' is the outcome of groundbreaking efforts. They have done very well as a monopoly for the f ... lic opinion can allow Quasar to (as a minimum) sustain if not grow.Year 2011Brand Development BudgetNeutronCeres0200Used Capacity (mn)1812Revenue ($bn)21.6Profit ($mn)520785Unused Capacity (mn)0Combin ...

(3 pages) 117 0 5.0 Jun/2009

Subjects: Social Science Essays > Economics

Market Structures Simulation Analysis

e world's first all optical notebook, Quasar Computers has branded their revolutionary wonder, the 'Neutron', a good choice due to speed capabilities five times the current conventional micro-chip pro ... as market structure changes.Solution to Sustain ProfitsQuasar needs to decide on a launch price for Neutron and monopoly indicates the best strategy is MC = MR rule. A price of $2,550 is where total p ...

(4 pages) 318 0 5.0 Jul/2009

Subjects: Social Science Essays > Economics