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Molecules, Compounds, Bond Formation, and Roles of electrons. By, Sessilie , Megan, and Mae. Molecules. If 2 of the SAME atoms of that same element bond, an element is produced into a molecule. Example: (H= hydrogen). Compounds.

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Presentation Transcript
molecules
Molecules
  • If 2 of the SAME atoms of that same element bond, an element is produced into a molecule.
  • Example:
  • (H= hydrogen)
compounds
Compounds
  • When 2 or more of DIFFERENT types of atoms combine, its called a…

“molecule of a compound”

Example:

CH4= Methane

compounds1
Compounds
  • Molecule of methane= compound
  • Molecule of hydrogen gas= non-compound (called molecular hydrogen)
  • Important: Compounds ALWAYS have properties quite DIFFERENT from the atoms it is made from.
  • Without analyzing a compound chemically, it would almost be impossible to know what atoms make it up.
videos about molecules and compounds
Videos about Molecules and Compounds
  • molecules and compounds demonstration video
  • Atoms are bonding song
bond formation
Bond Formation
  • Important: a chemical bond is not an actual physical structure.
  • But it is an energy relationship that involves interactions between the electrons of the reacting atoms.
role of electrons
Role of electrons
  • Electrons occupy generally on fixed regions of the space around the nucleus called the “electron shells” or energy levels.
  • Maximum number of electron shells in an atom: 7
    • from the nucleus outward.
    • This is until they find an atom with more than 7.
role of electrons1
Role of electrons

CONECTION!

  • Its life starts out like a baby’s life starts out!
    • It spends its infant and toddler years mostly at home and is shaped and molded by ideas and demands of its parents.
    • As they get older, they are shaped by others around them.