THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL ____________ 2.2 THE ATOMIC STRUCTURE ________...
THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL ______________charged sphere _________________...
THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL Nucleus containing _______________ Orbiting __...
THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL ______________________ (1885-1962) <ul><li>___...
THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL PROPOSAL SCIENTIST PROPOSAL __________________...
THE MODERN ATOMIC MODEL Improved model proposed by ________________________: <ul><li>An atom consists of a  ______________...
SUBATOMIC PARTICLES OF AN ATOM
PROPERTIES OF SUBATOMIC PARTICLES <ul><li>Have  ___________________  and  ___________________ </li></ul><ul><li>__________...
PROTON NUMBER AND NUCLEON NUMBER PROTON NUMBER : Number of __________ in its ___________ ___________ number of ___________...
SYMBOL OF ELEMENTS <ul><li>Atoms  from  _________________  have  _________________________ __ </li></ul><ul><li>Each eleme...
QUESTION: <ul><li>A sodium has 11 protons and 12 neutrons. What is the proton number and nucleon number of the atom? Repre...
QUESTION: <ul><li>Proton number of hydrogen is 1 and its nucleon number is 1. What is the number of neutron and represent ...
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Notechap2

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Notechap2

  1. 1. THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL ____________ 2.2 THE ATOMIC STRUCTURE __________ __________ (1766-1844) <ul><li>The ___________ basic __________ of all matter is called ___________ </li></ul><ul><li>Atoms are thought to be __________________ like very___________________ </li></ul><ul><li>Atoms cannot be ____________ into smaller particles or be __________ </li></ul><ul><li>Atoms of a given element have ___________, ____________and _______ </li></ul>
  2. 2. THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL ______________charged sphere _________________ charged electron ______________________________ (1856-1940) <ul><li>_____________ are discovered </li></ul><ul><li>Electrons are _______________________________ and are embedded in a ______________________________________ </li></ul>
  3. 3. THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL Nucleus containing _______________ Orbiting ________ _______________ ______________________ (1871-1937) <ul><li>________are discovered </li></ul><ul><li>Protons are __________ _______ and form a part of the __________, the_____ ______________________ </li></ul><ul><li>region of an atom </li></ul><ul><li>Nearly all the _________ of an atom is ___________ in the _________________ </li></ul><ul><li>Nucleus surrounded by _____________ travelling through ________________ than nucleus space </li></ul>
  4. 4. THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL ______________________ (1885-1962) <ul><li>_________________ are discovered </li></ul><ul><li>___________ travel only in a certain _____ </li></ul><ul><li>____________ around the ______________ of nucleus called the ___________________ </li></ul>
  5. 5. THE HISTORICAL DEVELOPMENT OF ATOMIC MODELS SCIENTIST PROPOSAL ATOMIC MODEL PROPOSAL SCIENTIST PROPOSAL ______________________ (1891-1974) <ul><li>_____________ are discovered </li></ul><ul><li>Neutrons are __________________ in the ______________ of an atom </li></ul><ul><li>The mass of a ____________ and a _________ is almost the same </li></ul>
  6. 6. THE MODERN ATOMIC MODEL Improved model proposed by ________________________: <ul><li>An atom consists of a ______________ and _________ that move around the _____________________ </li></ul><ul><li>The ___________ is _______________ and occupies a __________,_______________________________ </li></ul><ul><li>The _____________ consists of __________________________ and __________________________ </li></ul><ul><li>The ____________ move rapidly around the nucleus in the region called _________________________ </li></ul>
  7. 7. SUBATOMIC PARTICLES OF AN ATOM
  8. 8. PROPERTIES OF SUBATOMIC PARTICLES <ul><li>Have ___________________ and ___________________ </li></ul><ul><li>_______________________ are found in the ______________ of an atom while __________________ surround the nucleus </li></ul><ul><li>Most of the ___________ of an atom is concentrated in the _______ ( mass of _____________________ greater than mass of ___________________) </li></ul><ul><li>An atom consists of an __________ number of ___________ and ___________ </li></ul><ul><li>________________ of an atom is ____________ </li></ul>PROTON Symbol: _____ Relative electric charge: ____ Relative mass: ______ ELECTRON Symbol: ______ Relative electric charge: ____ Relative mass: _________ NEUTRON Symbol: _____ Relative electric charge: ___ Relative mass: _____
  9. 9. PROTON NUMBER AND NUCLEON NUMBER PROTON NUMBER : Number of __________ in its ___________ ___________ number of ___________ and ____________ in its atom So, NUCLEON NUMBER : NUCLEON NUMBER : +
  10. 10. SYMBOL OF ELEMENTS <ul><li>Atoms from _________________ have _________________________ __ </li></ul><ul><li>Each element has a __________________________ </li></ul><ul><li>Example: * Sodium has proton number ______ </li></ul><ul><li>* Oxygen has proton number ______ </li></ul><ul><li>Each element is given a ___________ and ____________ </li></ul><ul><li>( See Periodic table) </li></ul><ul><li>Standard representation: </li></ul>X A Z
  11. 11. QUESTION: <ul><li>A sodium has 11 protons and 12 neutrons. What is the proton number and nucleon number of the atom? Represent the atom in the form of z A X </li></ul>SOLUTION:
  12. 12. QUESTION: <ul><li>Proton number of hydrogen is 1 and its nucleon number is 1. What is the number of neutron and represent the atom in the form of z A X </li></ul>SOLUTION:

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