Essays Tagged: "Atom"

Classificaion of Scandium and Zinc are not transitional metal base on their general chemistry and properties

ck, which are largely covalent. In the s- and p-block electrons are added to the outer shell of the atom, in the d-block electrons are added to the penultimate shell explaining from 8 to 18 electrons. ... s acid (acceptor) by means of a lone-pair of electrons. Where the ligand is composed of a number of atoms, the one directly attached to the acceptor is called the ''donor atom'' this type of bonding i ...

(8 pages) 59 0 4.4 Apr/2002

Subjects: Science Essays > Chemistry

IB Chemistry - Intermolecular Bonding Essay:

and the evidence for the existence of each. Comment on their strengths in relation to the types of atoms involved; the covalent bond and relative to each other. Use the concepts of different types an ... polar, and electronegativity.Ionic bonds are created by the complete transfer of electrons from one atom to another. In this process of electron transfer, each atom becomes a ion that is isoelectronic ...

(6 pages) 89 0 4.3 Jan/1997

Subjects: Science Essays > Chemistry

Hololiterature, a Holographic Interpretation of the "Scarlet Letter", by Nathaniel Hawthorne

sphere of reference. Especially those that are 'fuzzy' or difficult to nail down. The brain and the atom are not fully understood, but by comparing functions, structures, and similar operations to kno ...

(4 pages) 43 0 3.0 Apr/1993

Subjects: Literature Research Papers > North American > "The Scarlet Letter" by Nathaniel Hawthorne

Nuclear Legacy

apy for cancer patients. Not all uses of radiation prove to bebeneficial. Many use the power of the atom for destructive purposes, introducing anage of nuclear warfare. It doesn't matter if we use rad ... ose whowere left to die. It is thoroughly frustrating to see how one discovery, the discovery ofthe atom, had changed the way we view the world today.

(4 pages) 67 1 4.7 Nov/1996

Subjects: Science Essays > Atmospheric Sciences

Nuclear Weapons.

In its attempts to harness the power of the atom, mankindhas itself in the possession of weapons with unbelievable,destructive power. Nations no ... into heaviernuclei, releasing energy and a neutron. In order to squeeze thetwo nuclei together, an atomic fission bomb is usually used. Afusion reaction releases about four times more energy per unit ... ore energy per unitmass than a fission reaction. The United States supervised thedevelopment of the atomic bomb under the code name ManhattanProject, during World War II. The first nuclear chain react ...

(4 pages) 133 0 4.0 Mar/1996

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

Electric Charge and the Electrical Structure of Matter

mple Model of the Structure of Matter1. All matter is composed of sub-microscopic particles, called atoms.2. Electric charges are carried by particles within each atom that are called electrons and pr ... ch atom that are called electrons and protons.3. Protons are found in a small central region of the atom, called the nucleus. They are small, heavy particles, and each one carries a positive electric ...

(7 pages) 70 0 4.3 Dec/1996

Subjects: Science Essays > Physics


XENONXenon is element number 54 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 x ... amily of elements called the noble gases. It is called a noble gas because the valance shell of one atom contains a full shell. Xenon is one of the most stable elements on the table. The 54 electrons ...

(2 pages) 67 0 3.6 Dec/1997

Subjects: Science Essays > Chemistry

Acetylation of Ferrocene

is lab we will be utilizing the Friedel Crafts process of acetylation of ferrocene. Ferrocene is an atom of iron bounded by two aromatic rings. We will use some reagents that will cause the ferrocene ... riodic chart. Specifically, in this lab we are talking about the difference in polarity between the atoms of oxygen and carbon. Ferrocene is relatively low to none in polarity. Acetylferrocene, becaus ...

(7 pages) 68 0 4.2 Oct/1996

Subjects: Science Essays > Chemistry

Why should the U.S. remain a world leader in the science of high-energy physics?

are the worlds of inner space, as far inside the structure of matter as we can see. Deep inside the atom there exists a world of tiny, invisible particles that are the building blocks of the universe; ...

(2 pages) 50 1 4.2 Nov/2002

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

Describes in simple terms the problems facing the ozone layer, including the problem of CPC's and the emergence of a "hole"---includes bibliography

derstood the composition of the ozone layer must be discussed.While ozone is a gas made of the same atom as oxygen, it has a different number of these atoms, altering its physical characteristics slig ... Pole. Through two expeditions to Antarctica in the late 1980s, it was determined that the chlorine atom in the CFC molecule was what was causing the problem.An agreement was made in 1987 known as the ...

(8 pages) 87 1 5.0 Mar/2003

Subjects: Science Essays > Atmospheric Sciences

Electric charge and static electricity.

ing with two types of charges: protons and electrons. Protons are bound tightly in the center of an atom, but electrons can sometimes leave their atoms. The two types of charges interact in specific w ...

(2 pages) 44 0 3.3 Apr/2003

Subjects: Science Essays > Physics

Introduces innovations in nano-technology.

Nanotechnology is a little known science that deals with building things out of atoms and molecules. The idea first came about in 1959, when Richard Feynman, a physicist, stated in ... nciples of physics, as far as I can see, do not speak against the possibility of maneuvering things atom by atom." Feynman went on to win the 1965 Nobel Prize in physics.The word nanotechnology was mo ...

(3 pages) 116 0 3.0 Jun/2003

Subjects: Science Essays > Technology

Nuclear energy.

e U.S.Advantages of using nuclear energy is that it available at anytime because the main component atom is Uranium, an element that is commonly found on earth due to its incorporation into the earth ...

(2 pages) 76 0 4.0 Aug/2003

Subjects: Science Essays

Chemical and Physical Matter and its Properties.

tter and its PropertiesBasic Building Blocks of MatterThe fundamental building blocks of matter are atoms and molecules. These make up elements and compounds. An atom is the smallest unit of an elemen ... maintains the properties of that element. And element is a pure substance made of only one kind of atom. A compound is the substance that is made from the atoms of two or more elements that are chemi ...

(3 pages) 85 2 4.3 Oct/2003

Subjects: Science Essays > Chemistry

Greatest Technology of the 20th Century. (I chose the atom)

gh spoken in 1922, Thomas Edison's words tell ominously of what is to come. The exploitation of the atom altered the world forever, changing the nature of war, giving us a new source of electric power ... er, and providing new capabilities in medical research and imaging.After the United States used the atomic bomb in Japan, a great change overtook the concept of war. Before the atomic bomb, cities too ...

(2 pages) 57 0 4.6 Oct/2003

Subjects: Science Essays > Technology

A lab report on the investigation of temperature on catalase activity.

xygen bubbles start to froth.It is almost certain that this will happen due to the behaviour of the atom. This means that the hotter the water gets the more active the water molecules become. Thus the ...

(3 pages) 96 0 5.0 Oct/2003

Subjects: Science Essays > Biotechnology

This is a A+ essay on Lazers.

There are only about 100 different kinds of atoms in the entire universe. Everything we see is made up of these 100 atoms in an unlimited number ... atoms in an unlimited number of combinations. They continuously vibrate, move and rotate. Even the atoms that make up the chairs that we sit in are moving around in class. Atoms can be in "different ... excitation" (Bertolotti 48) or they can have different energies. If we apply a lot of energy to an atom, it can leave what is called the ground-state energy level and go to an excited level. The leve ...

(4 pages) 171 7 4.3 Nov/2003

Subjects: Science Essays > Physics

The 1st temptation of Jesus as used to defend the inquisitor's argument in Dostoevsky.Freedom vs bread supported by marxism the institutional church the grand inquisitor and the church

answers. Through science we can understand how we came to be (Darwinism), and what we are made of (atom discovery). So people turned to this philosophy that denies God's very existence. Marxism says ...

(7 pages) 68 0 4.3 Dec/2003

Subjects: Humanities Essays > Philosophy > Modern Philosophy

Describe and explain the periodic trends of the period 3 elements Na - Ar

periodic table, these are some of the trends shown from looking at the periodicity of the elements.Atomic radiusAn atom doesn't have a fixed radius. The radius of an atom can only be found by measuri ... he radius of an atom can only be found by measuring the distance between the nuclei of two touching atoms, and then halving that distance. Atomic radius is measured in nm.The graph shows that atomic r ...

(2 pages) 44 0 3.0 Jan/2004

Subjects: Science Essays > Chemistry


tivityBy: lilticklemeelmo_23Radioactivity a.k.a. radioactive decay, is the steps taken in which the atomic nuclei of unstable isotopes release fast-moving particles and energy. There are three types o ... the most energetic radiation. In a radioactive isotope, the gamma rays come from the nucleus of the atom. There are two ways radiation can travel either as particles or waves. It does not change the a ...

(1 pages) 37 0 3.7 Jan/2004

Subjects: Science Essays > Chemistry