Essays Tagged: "neutrons"

Thallium

THALLIUMMy element was Thallium. It is atomic number 81. It has 81 protons and electrons and 123 neutrons. Thallium has a mass of 204.3833 atomic mass units. Its symbol is Tl. It resides in Group I ...

(2 pages) 37 0 2.5 Mar/1997

Subjects: Science Essays > Chemistry

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

Nuclear activities in todays world.

rimenting withspliting atoms and the sort. When theydiscoverd that by bombarding a uraniumatom with neutrons it would splitresulting in energy release of radiationand heat. After three weeks of testin ...

(2 pages) 82 1 3.5 Apr/2002

Subjects: Science Essays > Physics

Nuclear Power

tons found in the Uranium. In addition, a mass amount of energy is released along with two or three neutrons. It is these neutrons that can begin a chain reaction, each neutron that is given off could ... ting it apart. Each of these fissioning atoms releases a very large amount of energy, and some more neutrons.This process continues causing a chain reaction withut any outside assistance, and the Uran ...

(5 pages) 101 0 3.6 May/1996

Subjects: Science Essays > Physics

Nuclear Weapons.

lei are forced together, called fusion. In fission, anucleus from a heavy element is bombarded with neutrons. Thenucleus breaks into two pieces, releasing energy and two or moreneutrons. Each of these ...

(4 pages) 133 0 4.0 Mar/1996

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

Fission or Fusion

d, 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 neutrons released in this manner quickly cause ... 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

Xenon

on the periodic table of the elements. It has a mass of roughly 131 atomic mass units. There are 77 neutrons and 54 protons in the nucleus of the atom. The symbol for xenon is Xe and it belongs to the ...

(2 pages) 67 0 3.6 Dec/1997

Subjects: Science Essays > Chemistry

Terminology used in Chemistry.

ses and the outer electrons become weakly attracted by the nucleus.As you go to the rite the no. Of neutrons in the nucleus (+) charged particles increases. This pulls the electrons towards the nucleu ...

(2 pages) 45 0 2.3 Nov/2002

Subjects: Science Essays > Chemistry

Tungsten (the element).

right of Tantalum. Tungsten is an element with obviously 74 electrons and 74 protons. The amount or neutrons in this element total one-hundred-ten. Like all other elements there is a nuetral charge to ...

(1 pages) 66 1 3.4 Feb/2003

Subjects: Science Essays > Chemistry

Nuclear energy

d, 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 neutrons released in this manner quickly cause ... 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

This is a full report on elemental Mercury.

Mercury holds the 80th spot on the Periodic Table. It has 80 protons, 80 electrons, and 121 neutrons in a neutral atom. It is in the 6th period, and the 12th group. A neutral atom has an atomi ...

(1 pages) 31 0 3.0 Dec/2003

Subjects: Science Essays > Chemistry

This is a full report on elemental Mercury.

Mercury holds the 80th spot on the Periodic Table. It has 80 protons, 80 electrons, and 121 neutrons in a neutral atom. It is in the 6th period, and the 12th group. A neutral atom has an atomi ...

(1 pages) 26 0 4.0 Dec/2003

Subjects: Science Essays > Chemistry

Radioactivity.

thin like concrete, paper, and aluminum).Alpha decay (alpha particle) contains two protons and two neutrons. These particles can move very fast. It looses energy quickly. Alpha radiation can cause a ... s decay, a proton in an atom's nucleus turns into a neutron. Even though the numbers of protons and neutrons in an atoms nucleus vary, the total of particles stay the same.Half life describes the amou ...

(1 pages) 37 0 3.7 Jan/2004

Subjects: Science Essays > Chemistry

Iron- about its elemental properties and history of the metal.

Its melting point is 1535 degrees Celsius and its boiling point is 2750 degrees Celsius. It has 30 neutrons and 26 protons and electrons. It also has a cubic crystal structure. It is classified as a ...

(3 pages) 30 0 5.0 Feb/2004

Subjects: Science Essays > Earth Sciences > Geology & Geosciences

Chemical Properties of the element Barium

an atomic number of 56 and has an atomic mass of 137.327. The mass is made up of 56 protons and 81 neutrons. There are 6 energy levels of electrons that total 56 and have the S, P, and D orbitals. Th ...

(2 pages) 63 0 4.3 Feb/2004

Subjects: Science Essays > Chemistry

Atomic Bomb

ical mass, the mass at which the nuclear reactions going on inside the material can make up for the neutrons leaving the material through its outside surface. Usually the plutonium or uranium in a bom ... es of uranium or plutonium together to produce a critical mass. After this occurs, there are enough neutrons bouncing around in the material to create a chain reaction of fissions. In the fission reac ...

(5 pages) 65 2 4.8 Mar/2004

Subjects: History Term Papers > World History > World War II

The Atomic Bomb

and tests to know that they are there. Atoms are made up of three things; electrons, proton(s),and neutrons. If you combined proton(s) and neutrons you get the nucleus of the atom. Then the nucleus i ... certain amount of electrons, this graph will show you that. *The proton is positivtly charged while neutrons have no charge. The proton attracts the electron. This pull causes the whirling of electron ...

(9 pages) 79 0 5.0 Apr/2004

Subjects: History Term Papers > North American History

History Of Titanium

Martin Kloproth.WHAT IS TITANIUM?Titanium has an atomic number of 22, meaning it has 22 protons, 22 neutrons and 22 electrons.Titanium is a hard, silvery-grey metallic element.It is a transition eleme ...

(1 pages) 41 1 4.2 May/2004

Subjects: Science Essays > Chemistry

Chemistry 10 Study Notes for Matter and Bonding / Bond Types.

Atomic # Usually come in pairs Protons (+) charge Atomic # Neutrons Glue that holds nucleus of atom 2gether No charge Atomic mass - atomic ...

(3 pages) 28 0 0.0 Sep/2004

Subjects: Science Essays > Chemistry

Electricity/Voltage/Ground/Resistance

ons, which are positively-charged particles; electrons, which are negatively-charged particles; and neutrons, which have no charge. An atom has its neutrons and protons clustered together at its cente ... net charge. This is why an item at rest will not spontaneously generate electricity: it is stable. Neutrons and protons normally remain static within the nucleus of most (non-radioactive) substances. ...

(4 pages) 49 1 4.0 Jan/2005

Subjects: Science Essays