Each element is identified by a one or ii letter abridgment ex: C - carbon absorb elements- Exist in very minor(ip) amounts scarce are essential Atoms: The build ing blocks of Elements Elements are made up of atoms Atoms- the smallest element of an element that has the characteristics of that element The structure of an atom- Each element has distinct characteristics Nucleus- pump of atom made of positively charged particles (protons) and particles with no charge (neutrons) negatron cloud- small particles with negative charge spin at high travel rapidly around the nucleus Electron efficiency levels- Each energy level has a restrain capacity: first holds 2 e-, second holds 8 e-, and trey holds 18 e- Isotopes of an Element- Isotopes- atoms of the same element that have different rime of neutrons ex: Carbon- 12, Carbon- 13, and Carbon- 14 Isotope nuclei are un abiding and break away releasing energy as they do Compounds & Bonding- water supply is not an element, it is a compound Compound- a substance that is composed of atoms of two or more different elements that are chemically combined Characteristics of a compound are diffe rent than those of the undercover elements! How covalent bonds form- near matter is in the form of compounds Most elements are stable when their outer energy levels are full, one way to take on the outer shell is to assign electrons Most compounds in organisms have covalent bonds Covalent bonds- the force that... If you want to get a full essay, enounce it on our website: OrderCustomPaper.com
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