The Chemistry of Life. Basic Concepts

The Chemistry of Life. The nature of matter Atom: the basic social unit of matter. The sub ingredientic mites that shoot up atoms ar protons(+) , electrons(-) and neutrons (+/-). The protons and neutrons have intimately the kindred mass. The protons are positively heydayd pieces (+) and neutrons carry no dismantle at all. The electron is a negatively charged particle (-) . They are in constant motion in the range surrounding the nucleus. Elements and Isotopes. Element: is a pure burden that make up entirely of unrivalled type of atom. Compound: is a substance form by the chemic combination of twain or more ingredients in definite proportions. Isotopes: atoms of the same element that differ in the number of electrons they contain. Chemical Bonds The atoms in compounds are held unitedly by various types of chemical bonds. The main types of chemical bonds are garret bonds and covalent bonds. An ionic bond is formed when one or more electrons are transferred from one atom to some other. These positively and negatively charged atoms are cognise as ions. covalent bond: formed when electrons are shared amidst atoms. A molecule is the smallest unit of most compounds. Van der Waals Forces: polished tenderness that develops between oppositely charged regions of nearby molecules. Properties of piddle A water molecule is polar because there is a uneven distribution of electrons between the oxygen and heat content atoms. pee is one of the a few(prenominal) compounds found in a unruffled state everywhere most of the earths surface. alike other molecules, water is neutral. The love between a hydrogen atom with a partial positive charge and another atom with a particular negative charge is known as a hydrogen bond. Hydrogen bond is not as plastered as covalent or ionic bond. Cohesion: is an leader between molecules of the same substance. Adhesion: is an attraction between molecules of incompatible subs tances. Solutions and suspensions * A! mixture is a strong composed of two or more...If you want to get a full essay, vagabond it on our website: OrderCustomPaper.com

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