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Periodik’s System Element

By : Moh. Suwandi, S.Pt, M.Pd. Periodik’s System Element. SMA MAARIF NU PANDAAN TERAKREDITASI 2008. Periodik’s System Element. 1. Interest default – Base Interest and Indicator. 2. Periodik's System developing Element. 3. Faction and Period determination. 4.

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Periodik’s System Element

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  1. www.themegallery.com By : Moh. Suwandi, S.Pt, M.Pd Periodik’s SystemElement SMA MAARIF NU PANDAANTERAKREDITASI 2008

  2. Periodik’s System Element 1 Interest default – Base Interest and Indicator 2 Periodik's System developing Element 3 Faction and Period determination 4 Periodik’s character element 5 Exercise www.themegallery.com

  3. INTEREST DEFAULT – BASE INTERES and Indicator INTEREST DEFAULT : Description atomic structure, periodik's characters element, chemical bond, molecular structures and its character BASE INTEREST Description atomic, atomic structure, elemental characters, relative atomic mass, and periodik's characters of periodik's tables • INDICATOR • Determining faction & perioda elements in periodik's system table • Identify characters Periodik is Element Main Menu www.themegallery.com

  4. Periodik's System developing Element www.themegallery.com

  5. Periodik's System developing Element 1. Antonie Lavoiser On year 1789, agglomerate 33 element have already found by that times base chemical property, as 4( four) group, which is gas, earth, metal, and non metal. Group this stills over common, since apparently deep agglomerate elemental metal still available metal sort that having different character. Although such Lavoiser was successful makes one of Periodik's System form. 2. Triade Dobereiner On year 1829, agglomerating elements bases resemblance its character. Where 1 elemental group comprise of 3 elements, apparently character element that intermediating to constitute average of first element character and third. Finally been known by Periodik Dobereiner's System. Triade's law sounds:“If three elements in triade is arranged according to its atomic mass ascension, mass elemental atom in the middle (to - 2) equal to atomic mass average elemental 1st and 3rd ”. www.themegallery.com

  6. 3. Oktaf New Lands ( 1863 ) New Lands agglomerating element bases chemical property resemblance and atomic mass ascension. Element the first have character as elemental as to - 8 and so on. Octave law from New Lands sounds: “If elements is arranged bases its atomic mass ascension, its character on the turn regularly or periodik”. 4. Mendeleyev-Lothar Meyer (1869) Elemental collation up on atomic mass ascension apparently been followed periodik's ala denaturing. Lothar Meyer goes upon on character chemical. Apparently result kindred find. Periodik's law Modern interposed by Mosseley. Element is arranged terminological ascension atomic number,followed by periodic's ala denaturing. Elemental character concerning with electron configuration, electron's configuration bases number its atom. Periodik's law Modern was called By System Periodik forms length. www.themegallery.com

  7. 5. Periodik Modern On year 1913 Moseley's Henries( English nation), doing experiment elemental wavelength measurement utilize x-ray bases Moseley's experiment result concludes that atoms base character be not constituted by relative atomic mass, but bases amount ascension proton in atom. Apparently Periodik's System this Modern gets to settle weakness of Periodik's system in advance. This periodik's system comprise of vertical or faction column and the line horizontal or period Main Menu www.themegallery.com

  8. Faction and Period determination Periodik's system Forms Length, consisting of : Main Faction ( A ) consisting of : Faction IA until VIIIA a. Faction Transition Faction ( B ) consisting of : Faction IB until VIIIB b. Period : Horizontal column that consisting of 7 periods www.themegallery.com

  9. Electron configuration and valence Electron a. Electron configuration Bohr's atomic theory declares for that electron – electron circulates to drawn round fundamental atoms on orbit – given orbit or skinned given. Skin can function to determine period position an element Kulit “K” Kulit “L” INTI Kulit “M” Main Menu www.themegallery.com

  10. 2n2 Total maximum electron in every skinned atom according to “Wolfgang Pauli” n = kulit www.themegallery.com

  11. Electron inlay in skinned atom “Aufbau's order ” ( aufbau in german language matter “ builds ”) “Attention’ s = sharp ( 2 ) p = prinsipal ( 6 ) d = difuse ( 10 ) f = fundamental ( 14 ) 1s 1s 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f www.themegallery.com

  12. In Faction and Period Determination utilizes to step electron configuration Example : a. Determine elemental position 7N in periodik's system element . For working out it utilizes electron configuration : 7N : 1s2 . 2s2. 2p3 K L 2 5 So : ev = 5 Faction = VA Period = 2 Main Menu www.themegallery.com

  13. Character Periodik's Element 1. Atom finger = distance of atom until skin core most extern Worked up Worked up www.themegallery.com

  14. Ionizing potential: needful minimum energy by a neutral atom or ion to take down one bonded electron most in and out fasa gases most ionization Worked up Worked up www.themegallery.com

  15. 3. Electron afinitas: detached or permeated energy while one electron added to atom or ion in fasa gases most ionization Worked up Worked up www.themegallery.com

  16. 4. Elektronegatif : ability measure an atom to pull electron in its cords while atom's forms bond Worked up Worked up Main Menu www.themegallery.com

  17. Exercise • Element X by atomic number 20 and elemental Y with atomic number 31 and elemental Z with atomic number 38. Point out that element third that available in one faction or period • Element A with atomic number 52 and elemental B by atomic numbers 49 and elemental C by atomic numbers 84. Point out that element third that available in one faction or period www.themegallery.com

  18. 3. Known by electron configuration many elements following: Element A = 2 8 4 Element B = 2 8 18 7 Element C = 2 8 1 Determine that elemental position deep periodik's system Main Menu www.themegallery.com

  19. www.themegallery.com Thank You ! Web Kimia = http://teacher/swd Web Kelas XII IPA1 = http://teacher/cl@sic E-mail : mohammad_suwandi@yahoo.co.id

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