Quarks
Quarks- any group of subatomic particles believed to be among the basic components if matter
Quarks are believed to be the fundamental constituents of matter, and have no apparent structure. They are the particles that make up protons and neutrons, which make up the nucleus of atoms. Also, particles that interact by means of the strong force, the force that holds parts of the nucleus together, are explained in terms of quarks. Other baryons are explained in terms of quarks(1985 Quarks).
Quarks have mass and exhibit spin, the type of intrinsic angular momentum corresponding to rotation around an axis, equal to half the basic quantum mechanical unit of angular momentum, obeying Pauli's exclusion principle.
This principle that no two particles having half integral spin can exist in the same quantum state(1985 Quarks).
Quarks always occur in combination with other quarks, they never occur alone. Physicists have attempted to knock a single quark free from a group using a particle accelerator, but have failed. Mesons contain a quark and an antiquark, up, down, and strange, while baryons contain three quarks distinguished by flavours. Each has a charge that is a fraction of that of an electron. Up and down quarks make up protons and neutrons, and can be observed in ordinary matter. Strange quarks can be observed in omega-minus and other short lived subatomic particles which play on part in ordinary matter(1985
Quarks).
The interpretation of quarks as physical entities poses two problems.
First, sometimes two or three identical quarks have to be in the same quantum state which, because they have to have half integral spin, violates Pauli's exclusion principal. Second, quarks appear to not be able to be separated from the particles they make up. Although the force holding the quarks together is strong it is improbable that it could withstand bombardment from high energy and neutrinions in a particle accelorator(1985 Quarks).
Quantum chromodynamics(QCD) ascribes colours red, green, and blue to quarks and minus-red, minus-green, and minus-blue to antiquarks. Combinations of quarks must contain equal mixtures of colours so that they cancel each other out. Colour involves the exchange of massless particles, gluons. Gluons transfer the forces which bind quarks together. Quarks change colour as they emit and absorb gluons. The exchange of gluons is what maintains the right quark colour distribution. The forces carried by gluons weaken when they are close together , at a distance of about 10-13 cm, about the diameter of a proton, quarks behave as if they were free. This is called asymptomatic freedom(1985
Quarks).
When one draws the quarks apart the force gets stronger, this is in direct contrast with electromagnetic force which gets weaker with the square of
The Fourth State of Matter by Jo Ann Beard is a story about an event that changes Beard’s life. Jo Ann Beard is an editor of a physical journal. She works at University of Iowa, where in 1991, there was a mass shooting in the physic department. She tells the story unlike any reporters. Her story is almost a movie to the audiences because of all the imagery she uses. She also include a theme that every problem will be solved in the end by the way that nobody can think of.
This called the Bronsted-Lowry Theory. This theory can be shown in the chemical reaction HCl+H2O -> Cl-+ H3O. The HCl gave up its hydrogen to the water.Furthermore, the products left over from reaction have their own names as well. The acid (HCl) having given up its hydrogen (Cl-) is called the conjugate base. The base (H2O) having received the hydrogen (H3O), is called the conjugate base. The last theory is, The Lewis Theory. In the Lewis Theory an acid is any substance in a chemical equation which accepts an electron pair and a base is any substance which gives away its electron pair. This theory is different because it is broad enough to include substances which do not include oxygen or hydrogen. An example of this can be seen in the reaction, BF3 + F− → BF4− BF3 is the acid and F− is the base. Outside of these definitions there are common properties of acids and bases. The both conduct electricity. Acids are sour in taste and turn litmas paper red. Bases are bitter in taste and turn litmas paper
Ionic compounds are normally a combination of a metal, along with one or more non-metals. If you recognize the two ions, you have the name of the compound. For example, the familiar calcium ion, Ca2+ must combine with two iodides, I–, to afford calcium iodide, CaI2. For ionic compounds this means that the formula unit must have an equal number of positive and negative charges because ionic
An acid is a substance that produces hydrogen ions, H+ or hydrodium ionsH3O+ in solution. There are three “kinds of acids”: Arrhenius, BrØnsted-Lowry, and Lewis Acid. An Arrhenius acid is a substance the increases the concentration of hydrogen ion, H+ or hydronium ions H3O+when dissolved in water. You must have water. A BrØnsted-Lowry acid is any substance that donates a hydrogen ion, H+ to another substance. A Lewis acid is any substance that accepts a lone pair of electrons.A strong acid is one that breaks apart close to 100% when in solution (example HCl). When dissolved in water, HCl breaks apart into H+ and Cl- ions. Not all acids break apart. A weak acid is/are chemicals that do not break apart well. Acids have a sour taste, they are: corrosive and electrolytes. Acids react with active metals (group 1 or 2) to produce hydrogen gas, H2 They also react with bases to produce salt and water (a neutralization reaction). An Arrhenius base is any substance that increases the concentration of hydroxide ions (OH-) when dissolved in water. A BrØnsted-Lowry base is one that accepts a hydrogen ion, H+. A Lewis base is any substance that donates a lone pair of electrons. Bases have a bitter taste, bases react with acids to produce a neutralization reaction, and solutions that are basic feel slippery. On the pH scale, 7 is neutral. An acidic solution will have a greater hydrogen ion than hydroxide ion concent...
The American scientist John Wheeler coined the phrase “black hole” in 1969 to describe a massively compact star with such a strong gravitational field that light cannot escape. When a star’s central reserve of hydrogen is depleted, the star begins to die. Gravity causes the center to contract to higher and higher temperatures, while the outer regions swell up, and the star becomes a red giant. The star then evolves into a white dwarf, where most of its matter is compressed into a sphere roughly the size of Earth. Some stars continue to evolve, and their centers contract to even higher densities and temperatures until their nuclear reserves are exhausted and only their gravitational energy remain. The core then rushes inward while the mantle explodes outward, creating neutron stars in the form of rapidly rotating pulsars. Imploding stars overwhelmed by gravity form black holes, where the core hits infinite density and becomes a singularity (some estimate it at 10^94 times the density of water).
Have you ever wondered what a Black Hole is, or what happens if you go into one??? Well now’s your chance to find out about them.There are many theories to Black Holes and if they are real or not. But Black Holes are real. Karl Schwarzschild is the founder and the theory master to Black Holes.
Every day we look into the night sky, wondering and dreaming what lies beyond our galaxy. Within our galaxy alone, there are millions upon millions of stars. This may be why it interests us to learn about all that we cannot see. Humans have known the existence of stars since they have had eyes, and see them as white glowing specks in the sky. The mystery lies beyond the white glowing specks we see but, in the things we cannot see in the night sky such as black holes.
in astronomy, celestial object of such extremely intense gravity that it attracts everything near it and in some instances prevents everything, including light, from escaping. The term was first used in reference to a star in the last phases of gravitational collapse (the final stage in the life history of certain stars; see stellar evolution), by the American physicist John A. Wheeler.
In 1916, the German astronomer Karl Schwarzchild attempted to theorize how a star could shrink to become what he called a "Black Hole". Schwarzchild predicted that our sun would have to shrink to less than two miles in radius. He also predicted that even though the sun had shrunk its mass and weight would remain the same, which means that the planets would continue on their orbits, uneffected. Schwarzchild still questioned if stars could become this compact.
Mention 2 elements that can be isolated from the pitchblende and one uses of any of them?
...ectron-proton pair into a neutron. The neutrons, however, can often stop the collapse and remain as a neutron star. Neutron stars are fascinating objects because they are the densest objects known. They are only about 10 miles in diameter, yet they are more massive than the Sun. One sugar cube of neutron star material weighs about 100 million tons, which is about as much as a mountain.
In 1803 this theory was finalised and stated that (1) all matter is made up of the smallest possible particles termed atoms, (2) atoms of a given element have unique characteristics and weight, and (3) three types of atoms exist: simple (elements), compound (simple molecules), and complex (complex molecules).
The largest and most powerful particle collider in the world, based in CERN on the border of France and Switzerland, it is a huge undertaking. It is built to assists the scientists in discovering what the Earth is made of; it also plays a crucial part in resolving many theories by scientists. It is a 27 kilometer ring with super magnets that help the particles speed along the way. Some people also argue that it’s a machine that could possibly be dangerous, because it has the capability of creating small BLACK HOLES! “One way or another, it's the world's largest machine and it will examine the universe's tiniest particles. It's the Large Hadron Collider (LHC).”
Traditionally in school we are taught that there are only four states of matter: solid, liquid, gas, and plasma. Fortunately this is not true as that would be boring. There are also at least 4 other-less common states and Icontest a fifth. These are Bose-Einstein condensate, photonic molecules, quark-gluon plasma, superconductors, and superfluids. They all have unique properties that clearly distinguish differences between them and the traditional four states. These breakthroughs could help us in the future and have some practical uses right now.
strong base ( contained OH ) were 100% ionized in water and they were all