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The World of Biology

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Ginny Gucor

on 26 October 2012

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Transcript of The World of Biology

The atom is the the building block of life, and the nucleus contains the same amount of protons as there are neutrons, and the same amount of electrons that surround the nucleus. The electrons are bound to the nucleus by electro magnetic force. Atoms can be bound together by chemical bonds, and together atoms are called molecules. An atom is categorized by the number of protons and neutrons that are in the nucleus. The protons tell you the "chemical element", while the number of protons tell you the isotope of the element. Isotopes Foundation Compound Atom Electrons Molecules Biology is the study of life. There are many forms of biology, but we will only be talking about one section.... ATOMS!!! This Prezi presentation Will show the following: What are Atoms? What are they use for? How do they work? A compound is made up of two different types of chemical elements. The difference between a molecule and a compound is that molecules can be made up of the same type of atom (like nine hydrogen's together can be called as a molecule) where as with compounds, they have to have at least two different types of atoms. (water is a compound. It has two hydrogen's and one oxygen) Most things found in nature are made up of compounds, like water, wood, etc.) Compounds are classified under two catergories; organic and inorganic. Organic compounds are things that originate from living compounds, usually containing carbon chains or rings. Inorganic compounds are things that don't fall under the definition of organic compounds. The World of Biology (Atoms, etc.) Protons Disclosure: This project is for the sole purpose of educational research. "The World of Biology" Digital Citizenship, AHS, Pricilla Gomez and Ginny Gucor Molecules are a bunch of atoms held together by chemical bonds. Molecules are ions by their lack of electrical charge. Molecules are used for any gaseous particles.A molecule may consist of atoms of a single chemical element, as with oxygen (O2), or of different elements, as with water (H2O). Atoms and complexes connected by non-covalent bonds such as hydrogen bonds or ionic bonds are generally not considered single molecules. Neutrons Isotopes http://en.wikipedia.org/wiki/Electron The symbol of and electron is e-. An electron is a subatomic particle with a negative charge. An electron is the outer shells that protect the neutrons and protons, also known as the nucleolus.An electron has a mass that is approximately 1/1836 than that of the proton. An electron can collide with other particles and can be diffracted like light. However, this duality is best demonstrated in experiments with electrons, due to their tiny mass. Since an electron is a fermion, no two electrons can occupy the same quantum state, in accordance with the Pauli exclusion principle. A fermion is any particle characterized by Fermi–Dirac statistics and following the Pauli exclusion principle. The Pauli Exclusion Principal is the quantum mechanical principle that no two identical fermions (particles with half-integer spin) may occupy the same quantum state simultaneously. Also Electrons can be shared or given from one electron shell to another. Covalent bonding are the type of bonds that are shared between electrons to make each other neutral. An Ionic bond are the type of bonds that get given from one electron shell to another. Which by taking one away you make one of them neutral and by reliving you make another electron neutral. The valance electrons are the electrons that are in the last shell. These are the ones that get shared or given. Electrons Isotopes are modified versions of certain chemical elements Sources http://www.britannica.com/EBchecked/topic/108614/chemical-compound http://en.wikipedia.org/wiki/Electron http://www.chem4kids.com/files/atom_neutron.html http://en.wikipedia.org/wiki/Atom http://en.wikipedia.org/wiki/Isotope Protons have an positive charge, and are found in the center of the nucleus along with the neutrons. Protons determine the atomic number of the element, and you have the same amount of electrons as you have protons. Neutrons have a natural charge. Just because neutrons don't do anything don't think they are not important. Every single part of an atom is important for the function of an atom. If an atom has the same equal number of protons and electrons they they become natural. It doesn't how many neutrons you put inside an atom they will not change the atom. The only thing that it will do is you will cause the atom to be highly radio active. Neutrons play a major role in the mass and radioactive properties of atoms. Atoms
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