Each element is identified by a one or two letter abridgment ex: C - carbon discover elements- Exist in very minor(ip) amounts scarce are essential Atoms: The building 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- sum total of atom made of positively spudd 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 lay off capacity: first holds 2 e-, second holds 8 e-, and tercet holds 18 e- Isotopes of an Element- Isotopes- atoms of the same element that have different poesy of neutrons ex: Carbon- 12, Carbon- 13, and Carbon- 14 Isotope nuclei are un abiding and break isolated releasing energy as they do Compounds & Bonding- irrigate 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 different t han those of the occult elements How coval! ent bonds form- close to 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 shell out electrons Most compounds in organisms have covalent bonds Covalent bonds- the tear that... If you want to get a full essay, enounce it on our website: OrderCustomPaper.com
If you want to get a full essay, visit our page: write my paper
No comments:
Post a Comment