Electric charge

Answer: Question 1 (a) Energy Energy Energy Band gap Band gap 0 0 0 (i) Insulator (ii) Semiconductor (iii) Conductor Diagram 1: The energy band The differences between insulator, semiconductor and conductor. Insulator Semiconductor Conductor It has a large band…

foundational to understanding chemistry. Quantum-Mechanical Model- a model that explains the strange behavior of electrons Electromagnetic Radiation- a type of energy embodied in oscillating electric and magnetic fields Amplitude- (of a wave) is the vertical height of a crest. The amplitude of the electric and magnetic field waves in light determines the light’s intensity or brightness. Greater amplitude = greater intensity…

Figure 1a. Size of nano curcumin. Image of curcumin nanoparticles taken with Transmission electron microscope (JOEL 2100F) showing particles having size distribution of 59.9 nm to 198 nm ( average size of 160 nm). Figure 1b. Bioavailability of nano curcumin. Mice were given I.P injections with curcumin/nanocurcumin (vehicle: PBS containing 10% ethanol) per mice at 100 mg/kg body weight and then bled at different time points via retro-orbital puncture and blood collected from each…

Discussion Fold purification was calculated from specific activity. From sample A to B there was the addition of MgCl2 which denatured some proteins that were removed in the pellet. The second step of purification was even more successful with a 4.1 fold increase in purification, it was achieved by denaturing the non-recombinant E.Coli proteins. The Second step was much more beneficial to the total purification but the combination of the two steps achieved an even better purification of 4.6…

In the stories, “Energy Story,” “Short Circuit,” and “Conducting Solutions.” They use examples and real life experiments to tell the reader about energy and different ways it can be conducted. To begin, In the story “Energy Story.” They first begin by catching the reader's attention by saying how energy is used everywhere in our lives and most of the appliances we use today would be useless without energy. They then begin to explain atoms and how they have to do with electricity. “Electrons…

Ionic and Covalent bonds are the two different types of bonds that hold atoms together, each having their own characteristics. The distance and charge determines the type of bond the molecules have. These bonds occur because atoms strive to obtain the ideal valence of 8. Some atoms need to gain or lose electrons in order to achieve the ideal valence. In a covalent bond, the electrons are being pulled by two atoms that are both nonmetals. In other words, the two atoms are sharing electrons, but…

Free radicals are molecules that have at least one unpaired electron. They are typically very reactive, due to their odd number of electrons. These molecules tend to try and gain or lose electrons so their highest energy levels can be filled. They will bond with other compounds in the body, sometimes combining with them, or even taking parts of intact molecules, resulting in even more free radicals (Walling). Free radicals can be formed by natural body processes, such as metabolism. They…

The stories Conducting Solutions, Energy Story, and the video Hands-On Science with Squishy Circuits have all helped me learn a lot more about electricity. The purpose of these sources were to help the reader to understand and inform the reader about how electricity is made. It also showed how easy it is to make electricity. These three sources have many differences and similarities but they all serve the same purpose. In the video Hands-On Science with Squishy Circuits it talks about how easy…

Chemistry As Carl Sagan once said, “Chlorine is a deadly poison gas employed on European battlefields in World War I. Sodium is a corrosive metal which burns upon contact with water. Together, they make a placid and non-poisonous substance, table salt. Why each of these substances has the properties it does is a subject called chemistry.” Chemistry involves many things, from atoms to elements and their functions. It is a wide field of science with an extensive early and modern history. It also…

One of the main experiments Rutherford is known for is his Gold foil experiment. He devised a way to prove that radioactivity in particles exists in at least two forms. In the experiment tiny alpha particles were shot at a sheet of foil coated in ZnS which resulted in a small percentage went through the sheet and the rest were blocked/deflected. The percentage of particles that were able to go through the foil are now named 'Alpha Particles' and the ones that were blocked are called 'Beta…