Some of the colors were similar but salt solution had its own distinct differences. Flame tests are the best way to determine the color a solution will emit. “Flame tests are a quick method of producing the characteristic color of metallic ions. The colors seen are a combination of the wavelengths of each transition.” Introduction 2: “An atom can react with another atom to form a compound through either a sharing or transfer of electrons in an interaction called bonding.” An Ion by definition is “an electrically charged atom or group of atoms. Metals on the left side of the table, tend to form
Nuclear fission is a nuclear reaction that produces a lot of energy, and occurs when the nucleus of an atom splits into two parts spontaneously or with the impact of another particle. 4. What is meant by nuclear fusion? Nuclear fusion occurs when a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy. 5.
Experiment #9: e/m Ratio Submitted by: Linda Agaby 1255497 Alexandre Belisle 1236050 Instructor: Caroline Viger Experiment performed: May 03, 2013 Report submitted: May 10, 2013 Abstract J.J. Thompson first discovered the charge to mass ratio of the electron by measuring the deflection of electrons when accelerated in a magnetic field, and their kinetic energy. To reproduce this experiment, Helmholtz coils were used to create a magnetic field, and an electron gun was used to create a flow of electrons. The electron gun is composed of a filament, and when the filament is heated, electrons obtain enough energy to escape the metal. These electrons are then accelerated by a potential between the anode and the cathode that is varied during the experiment. The electrons experience a magnetic force due to the field that is perpendicular to the velocity vector, so the electrons follow a circular path.
The Flame Test Lab Objective- Given Materials- Given Procedure- Given Results- Element Color Sr- Red Orange Ba- Yellow Orange Na- Bright Orange Li- Hot Pink Ca- Orange Cu- Green, Aqua, Blue Conclusion Questions- 1. The process by which the colored flame is produced is the release of light energy. When heat energy is added to an element, its electrons move from their ground state, to an excited state. This means the element's electrons are jumping from one orbital to another. When the heat is released, the electron then jumps back into its ground state, or back into its original orbital.
The dyes ranged from J = 0 to J = 3. This meant that the dyes elongated by a C=C each time and increases the number of π electrons by 2. This is important as in an excited energy state, an electron can flow from nitrogen to nitrogen in a wave pattern. The nitrogen to nitrogen terminals form what can be described as a one-dimensional box. The energy and frequency of this wave would be calculated from initially, satisfying the Schrodinger Wave equation for a one dimensional form.
In this process, the original atom will lose two neutrons and two protons, changing the element’s atomic number and mass, and subsequently making it into a different element. My model clearly and simply demonstrates this process due to the fact that it does not over complicate the process. I did not label the parent atom intentionally, to imply that this process can generally happen to almost any charged particle. Also, empty spaces are left in the atom to show that the particles that form the helium nucleus were released. On top of this, the helium nucleus is clearly labeled and is shown containing two neutrons and two protons (which are also labeled using an “N” and a “+”).
Nuclear fusion however is the reaction in which two or more nuclei combine together to form a new element with higher atomic number. The fusion of two nuclei with lower masses than iron generally releases energy, while the fusion of nuclei heavier than iron absorbs energy. This means that fusion generally occurs for lighter elements only, and likewise, that fission normally occurs only for heavier elements. For a nuclear fusion reaction to occur it is necessary to bring two nuclei so close that nuclear forces become active and glue the nuclei together. Nuclear forces are small-distance forces and have to act against the electrostatic forces where positively charged nuclei repel each other.
This is called photosynthesis. Photosynthesis takes place in two stages: light reactions and the Calvin cycle. In light reactions, water is split, which creates electrons and releases oxygen as a byproduct [Mr.Orlinsky’s lectures]. This reaction also reduces NADP to NADPH. Light is absorbed by chlorophyll, and this causes electrons to jump to a higher electron level and create ATP.
When scientists make the different colors, each color has its own element. Also each element is mixed with an oxidizer to help create the color for the fireworks. Strontium is used to produce red fireworks; barium to produce green; sodium to produce yellow; copper to produce blue; and aluminum, magnesium, and titanium to produce white(Roncone, K. 2004). One of
Date: October 21, 2012 Class: Survey of the Sciences Subject: Unit 5. Isotopes and Radiation Radioactivity is the emission of energetic particles or waves from atoms. Natural radiation occurs when unstable nuclei transform to some other nucleus by emitting radiation. As they decay over varying lengths of time (from microseconds to hundreds of thousands of years), they emit energetic particles or waves. An isotope is a form of a chemical element whose atomic nucleus contains a specific number of neutron s, in addition to the number of proton s that uniquely defines the element.