Atomic nucleus

occur when the nucleus of an atom instable. This occurs when the proportion of neutrons and protons are not lying on the band of stability, which consists of stable nucleus configurations in relation to the atomic number (as seen below). Atoms along the band of stability are assumed to contain enough energy within the nucleus to hold it together. This energy called the nuclear binding energy has yet to be discovered and is just a scientific assumption to explain why the like charge protons are not repelling each other. Atoms which don’t have substantial nuclear binding energy are generally considered isotopes of the original elements eg. Uranium – 238 is an isotope of Uranium – 235. The numbers next the element represents the relative mass of the atom to Carbon – 12 and are different because Uranium – 238 contains 3 more protons. Isotopes like Uranium – 238 emits radiation in order to achieve a stable nucleus. The radiation emitted includes Alpha, Beta and gamma particles: (as pictured below) Alpha radiation occurs is emitted from atoms with an atomic number greater than 87, where there is an excess concentration of both protons and neutrons in the nucleus. Eg. 23892U 23490Th +42He (α emission_ Beta particles occurs when a neutron decomposes into a proton which results in the release of an electron due to an inbalance in charges in the atom. Eg. 11n 11H + 0-1 In gamma radiation the release of photons occurs because the nucleus is in an…

to create the world and everything in it. They can also be used for other purposes not naturally, such as an atomic bomb. Atoms are critical to our survival at a whole. The history of the atom dates back to ancient times. Ancient Greeks had their own ideas based on atoms. Some believed they were tiny and hard. They believed the atom could not be cut into anything smaller, which is why the word diverged from the Greek word undivided. John Dalton discovered atoms, all his thought and ideas…

Alchemists used to obsess over chrysopoeia, the transmutation of regular metals, such as copper, into gold. However, they were not aware at the time that copper and gold were two different atomic elements and instead believed them to be compounds. Thinking these metals could be changed chemically or physically in labs, alchemists pursued this dream to no advantage. Although it is not possible to change ordinary metals to gold through chemical reactions, physical reactions, radioactive decay, or…

Henceforth, fat, or lipids, is basic since it encompasses the greater part of the cell membranes. Lipids take into consideration the trading of supplements. It is important for these membranes to stay healthy and fit, all together for the cerebrum to be at its most extreme working potential. The core is contained by two membranes (an inward and an external). These go about as a boundary to keep DNA inside the core where interpretation happens. The RNA produced amid interpretation is transported…

that comprise an atom. The first of these components that make up an atom is the proton. The proton is a very important part of an atom, because the atomic number of an atom is equivalent to the number of protons that that atom has. Additionally, the mass of an atom is equal to the sum of the number of protons and the number of neutrons of that atom. The number of electrons that an atom has is also equal to the number of protons that that atom has.…

atom is the basic unit of an element .it is a form of matter which cannot be broken down any further .an atom consist of sub atomic particles which are protons, neutrons and electrons .I will be looking at specifically the atom lead. Every element in the Periodic Table has been given a letter symbol , the symbol for lead is Pb.i will now describe the sub atomic particle in lead .protons are in the nucleus of the atom , All atoms of the same element have the same number of protons. This number…

the basic unit of a chemical element. An atom consists of particles such as electrons, protons, and neutrons. The protons and neutrons of the atom make up its center, called the nucleus, and its electrons surround the nucleus from a certain distance.…

I drew a boiling pot of water to represent the importance of water. Water is important for many causes. Water is transported through cells by osmosis. Osmosis is the diffusion of water across a selectively permeable membrane. Water moves through cells by passive transport, facilitated diffusion, or active transport. Water moves from low solute to high solute. Water is important for cells and organisms. I drew a prokaryote to represent the different types of cells. Prokaryotes are the simplest…

Overall Impact Numerical Score: 3 Overall Evaluation: This is a competitive renewal application on Poultry Dust and Lung Inflammation form an established investigator. The renewal application builds on the discoveries made in the last funding cycle on effects of poultry dust on lung epithelial cells and monocytic cells, and lung inflammation in a mouse model. The data showed that poultry dust contains protease activity,…

There are two overarching classes to these organisms: prokaryotes and eukaryotes (Reece et al., 2014). Prokaryotes (meaning before nucleus) are put in two domains: Bacteria and Archea (Biology Department, 2015). Eukaryotes on the other hand, (which have nuclei), are in the Eukarya domain and encompass all other organisms such as plants, animals, fungi and protists (Biology Department, 2015). The most effective way to distinguish between classes comes from observations made about their structure.…