Atomic structure

• nucleus


  center of the atom

  
• proton


  positively charged subatomic particle

  
• electron


  negatively charged subatomic particle

  
• neutron


  subatomic particle with NO charge

  
• cation


  an atom or molecule with fewer electrons than protons

  
• isotope


  an atom with more neutrons than the typical atom of the same element

  
• electron cloud


  the location outside the nucleus where electrons are found

  
• anion


  an atom or molecule with more electrons than protons

  
• compound


  two or more atoms chemically bonded in specific ratios

  
• Atomic Number


  The Number of protons in an atom
• Mass Number


  The total number of protons and neutrons in an atom
• Mass of an electron

  .0001
• Group


  The vertical columns of the periodic table
• Period


  The horizontal rows of the periodic table
• 6


  C-16 (3+)How many protons?
• 10


  C-16 (3+) How many neutrons?
• 3


  C-16 (3+) how many electrons?
• 7


  N-12 (2-) How many protons?
• 5


  N-12 (2-) How many neutrons?
• 9


  N-12 (2-) How many electrons?
• 11


  N-14 (4-) How many electrons?
• 13


  N-20 (4-) How many neutrons?