Element Essay, Research Paper
What is an element: Simple substances that can not be broken down into simpler substances.
What is an atom: smallest part of an element that can be identified as an element.
How do you right a chemical symbol: If it is one letter capitalize it, if there are two letters capitalize the first letter but not the second.
Malleable- metals that can be hammered into thin sheets like aluminum foil.
Ductile- metals that can be drawn into wire.
Luster- shine
Brittle-breaks easily
Who stated the atomic theory of matter: Dalton
What are the main physical properties of metals and non metals: Metals tend to give up electrons when they bond but Non metals tend to gain or share electrons when they bond.
What are valence electrons: The electrons on the last energy level of an atom, which are used in chemical bonds.
Ion- a non-neutral atom.
Isotopes- Atom of an element with the same number of protons but a different number of neutrons.
What is the mass of protons and neutrons and electrons: Protons & Neutrons = 1 AMU / electrons = 1/1836 AMU
What does the atomic number tell you: Number of Protons in the nucleus of an atom.
What happens to an electron if it looses or gains energy: As it looses energy it will drop to an energy level closer to the nucleus but as it gains energy it will move to an energy level away from the nucleus.
How do you figure out the atomic mass:
Do isotopes have different atomic masses or atomic numbers: atomic mass.
1st energy level holds 2 electrons 2nd holds 8.
Mass number atomic number = number of neutrons
Другие работы по теме:
My Symbolical Snack Essay Research Paper My
My Symbolical Snack Essay, Research Paper My Symbolical Snack THE LIQUID My liquid is APPLE JUICE. The apple, once portrayed as the Forbidden fruit eaten by Adam and Eve, has a lot of nutrients that are essential to the body. Potassium, fiber, and many vitamins are things that your get from the apple.
Noble Gases Essay Research Paper Noble GasesThe
Noble Gases Essay, Research Paper Noble GasesThe Noble Gases are the far right elements on the periodic table. On the earth they are scarce so we don+t see much of them. They are do not react well with anything. In fact until around the 50+s they hadn+t found anything that they would react with any of the gases.
Oedipus The King Essay Research Paper 3
Oedipus The King Essay, Research Paper 3. How Sophocles? Oedipus the King fits the description of tragedy provided by Aristotle? Why does Aristotle believe tragedy is superior to epic poetry?
Untitled Essay Research Paper MATERIAL SAFETY DATA
Untitled Essay, Research Paper MATERIAL SAFETY DATA SHEET WOMEN: A Chemical Analysis ELEMENT: Woman SYMBOL: WO DISCOVERER Adam ATOMIC MASS: Accepted as 118 lbs, known to vary from 110 to 550 lbs. OCCURRENCE: Copious quantities throughout the world. PHYSICAL PROPERTIES: 1. Surface usually covered with a painted film. 2.
Now About Surprises Essay Research Paper SurprisesSurprise
Now About Surprises Essay, Research Paper Surprises Surprise. This word brings forth images of parties and fun for everyone. Like, for Christmas, when children wake up in the morning to see the tree full of presents, they have a look of surprise. A surprise can be just about anything. It can be a cookie for a small child.
Manganese Essay Research Paper Hi I am
Manganese Essay, Research Paper Hi, I am Manganese. I am an element discovered in 1774 by the Swedish chemist Johan Gottlieb Gahn. My symbol was devised, coincidentally, by taking the first and third letters in the word manganese. My atomic number is 25, my atomic mass is 54.938, and my density is 7.2. I melt at 1245? C and then in turn I boil at 1962? C.
Lawrencium Essay Research Paper LawrenciumThere are 109
Lawrencium Essay, Research Paper Lawrencium There are 109 known elements, and of those, 19 of them are artificially produced or synthetic. A synthetic element is made by bombarding atomic nuclei with neutrons or other particles. The element Lawrencium has been made in this manner. While scientists continue to work to create more elements, it should be noted that most synthetic elements are so unstable, that they are of theoretical value only, and have no known practical uses.
Radon Essay Research Paper Radon is an
Radon Essay, Research Paper Radon is an element that is on the periodic table of elements. It is a member of the family called the noble gases, which is group number 18. Radon is a gas. It is a gas at 298 k. it is the heaviest known mononuclear gas at that temperature. Radon is also colorless. When it is cooled below the freezing point, radon exhibits a brilliant phosphorescence, which becomes yellow as the temperature is lowered.
Chemical Compounds Bromine Essay Research Paper The
Chemical Compounds Bromine Essay, Research Paper The element Bromine, is a red liquid which is explosive at room temperature and has a red brown vapour. It has an atomic number of 35 and an atomic mass of 79.909. The
Uranium Essay Research Paper Uranium was first
Uranium Essay, Research Paper Uranium was first discovered by Martin Klaproth in 1789. Although he discovered it in a compound, he named it Uranium after the planet Uranus. It was later found in its pure form by Eugene Peligot in 1841. It can be found in ores of pitchblende, carnote, and torbernite.
Aluminum Essay Research Paper Aluminum is lightweight
Aluminum Essay, Research Paper Aluminum is lightweight, silver looking element. It is located in the boron group and the third period on the periodic table. Aluminum can be formed into many different shapes. It can also be drawn into wires. Aluminum has thirteen proton and electrons. Aluminum has fourteen neutrons.
Krypton Essay Research Paper The element that
Krypton Essay, Research Paper The element that I have chosen in . The people who discovered it are known as Sir William Ramsay and Morris William Travers. Sir William Ramsay and Morris William
The Matrix Essay Research Paper The first
The Matrix Essay, Research Paper The first key element in an OOUI is, does a Product consist of a collection of cooperating objects is and views of objects. In the movie the two things that show this is the Matrix and the Constuct, because both of these places show you a world like simulator with objects being buildings, cars, and Kung Fu Dojos.
Nath Essay Research Paper Nathaniel Hawthornes short
Nath Essay, Research Paper Nathaniel Hawthorne?s short stories ?The Birthmark? and Rappaccinni?s Daughter are both tragic tales of women being taken advantage of. In each account a young woman is skillfully led to her downfall by a loved one she trusts. In each case Hawthorne includes an inconceivable innocence about the woman.
Some Reminders About The Periodic Table Essay
, Research Paper Thanks to Doc Brown of ChemHelp.Net for these great chemistry revision notes. Check out his site for more! The elements are laid out in order of Atomic Number Hydrogen, 1, H, does not readily fit into any group
Carbon
– The King Of Elements Essay, Research Paper When you look at the periodic table, you see a lot of letters, some numbers, different colors, and areas divided into rows and sections. There is one element on the periodic
Oxygen Essay Research Paper DiscoveryOxygen was first
Oxygen Essay, Research Paper Discovery Oxygen was first discovered by two scientists. One was a British Chemist Joseph Priestly who was given credit for the discovery in 1774. The other was a Swedish Chemist Carl Wilhelm Scheele who had also discovered it around the same time as Priestly. Yet Priestly was given credit because his work, and results were published.
Pygmalion Essay Research Paper is an element
Pygmalion Essay, Research Paper is an element of comedy in the sThere tory Pygmalion and in the film My Fair Lady. In the play and the film alike, a woman of the streets named Liza
The Ancient City Essay Research Paper The
The Ancient City Essay, Research Paper The Ancient City Pompeii How democratic was Pompeian politics? In order to answer the above question, it is first necessary to consider the exact meaning of the term democracy . Whilst it is difficult to give an exact definition of the word, it is certainly possible to create a list of the implications of democratic government for a society and its citizens.
The Element Iron Essay Research Paper Iron
The Element Iron Essay, Research Paper Iron comes from the Latin word ferrum. From ferrum its symbol became Fe. The atomic number of iron is 26, and its atomic weight is 55.845. Iron is a magnetic, bendable, shiny white metallic element.
Grant Wood Essay Research Paper During the
Grant Wood Essay, Research Paper During the 1930’s, this American regionalist pianter was in his prime. Grant Wood was born on the day Febuary 13 , 1891 in Anomosa, Iowa. He won much acclaim including both critical and popular for his element. During his four visits to Europe in the late 1920’s Wood was strongly influenced by the work of 16th century flenish painters such as the Van Eyck brothers.
Valves Essay Research Paper Valves The primary
Valves Essay, Research Paper Valves The primary purpose of a valve is to direct the flow of fluids by starting, stopping, and throttling flow to make modern processing possible. Valves are designed to withstand pressure temperature, and flow, and can be found in homes and industry across the world. The most common valves found in the manufacturing industry are gate, globe, ball, check, butterfly, plug, needle, three-way, diaphragm, relief, angle, and multiport.
Personality Essay Research Paper PersonalityWhat is personality
Personality Essay, Research Paper Personality What is personality? Personality is defined as a ingrained and relatively enduring patterns of thoughts, feeling and behavior. How can anybody be certain how his or her personality is going to turn out. I think people go through many different types an stages of personality throughout life.
Immigration The Maker And Breaker Of America
Essay, Research Paper There are many issues concerning the immigration into America by peoples of other races and cultures, and a hundred more opinions to go with them. At the time of the largest immigration boom into this country, between 1880 and 1920, many people thought of immigration as a negative thing.
Body Building Essay Research Paper Bodybuilding Health
Body Building Essay, Research Paper Bodybuilding Health is a very important element in today’s society. More and more people are beginning to train in bodybuilding to become healthier. Taking pills and going to the doctor are less important than what people can do on their own.
Cloning Essay Research Paper In 1938 a
Cloning Essay, Research Paper In 1938, a German scientist, Hans Spemann theorized that organisms could be reproduced. His belief was that by transplanting the central element of one animal’s cell into the egg of another animal, the animal supplying the cell could be reproduced or “cloned.” Dr. Spemann believed that the central element or “nucleus” of a cell contained the genetic blueprint for the structure of an organism.
Food Of Mexico Essay Research Paper The
Food Of Mexico Essay, Research Paper The Wonderful Food of Mexico! Food is probably the most important element of Mexican culture. Much of the daily routine and tradition in Mexico revolves around the ritual of preparing and eating food. In history, women made their way to the local markets to fill their basket with vegetables, fruits, meat, and fish.
Hydrogen Essay Research Paper HydrogenHydrogen is the
Hydrogen Essay, Research Paper Hydrogen Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up about about 90% of the universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because of the fire risk (Hindenburg).