Hbsc 4303 bahan

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  • POR FAVOR ESTA PROPUESTA DE NEGOCIO, ESCRIBA EN MI ESPALDA ID si está interesado.
    ------------------------------------

    Feliz mes nuevo abundante de noviembre,

    Hola.

    ¿Cómo estás hoy?
    Espero que estés bien y que todo está bien con usted? gracias God.My nombre es jenifer PETERSON. (estoy buscando una buena relación y además que tenga propuesta de negocios con usted) si lo desea. por favor, escríbeme mensaje a mi buzón de correo electrónico
    Thanks,>

    jeniferpeterson1 en / yh / dt / cum
    ---------------------

    PLEASE THIS BUSINESS PROPOSAL, WRITE ON MY ID BACK IF INTERESTED.
    ------------------------------------

    Happy abundant new month of November,

    Hello.

    how are you today?
    I hope you are fine and all is well with you ? thank God.My name is JENIFER PETERSON .(i am looking for a good relationship and also to have business proposal with you )if you want. please write me message to my email box
    THANKS,>

    jeniferpeterson1 at / yh / dt / cum
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
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Hbsc 4303 bahan

  1. 1. The Modern Concept of Atomic StructureComparing the Parts of an Atom
  2. 2. ISOTOPES
  3. 3. Atomic WeightAtomic Weight - average mass of thenaturally occurring isotopes of anelement .The Atomic Weight of an element is theweighted average of the atomic massesof the different isotopes of that element.Atomic Weight is also known as theAverage Atomic MassUnits for Atomic Weight are amu =atomic mass units
  4. 4. IsotopesIsotopes are atoms with the same number of protonsbut different numbers of neutrons.
  5. 5. IsotopesThe number of protons for a given atomnever changes.The number of neutrons can change.Two atoms with different numbers ofneutrons are called isotopes
  6. 6. IsotopesHave the same atomic number (numberof protons)Have different atomic mass numbers(number of protons + neutrons)
  7. 7. IsotopesA particular isotope is represented by thesymbol.
  8. 8. Examples of Isotopes

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