Ionic and Molecular Compounds

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Chemistry
Chapter 6
updated 6 years ago by chaneasegarvey
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1

Compound

  • composed of two or more elements, with a definite composition
  • may be ionic or molecular
  • form when electrons are transferred or shared to give stable electron arrangement to the atoms
2

Ionic Compound

  • one or more electrons are transferred from metals to nonmetals, which form positive and negative ions
3

Molecular Compound

  • consists of two or more nonmetals that share one or more valence electrons
4

Noble Gases

  • only form compounds under extreme conditions
  • have a filled valence electron energy
5

Octet Rule

  • chemical bonds are formed when atoms lose, gain, or share valence electrons to acquire an octet of eight valence electrons
6

Valence Electron

  • one of the electrons that take part in chemical reactions of an atom
7

Atoms form positively charged ions when they __________

lose electrons

8

Atoms form negatively charged ions when they ____________

gain electrons

9

Ionic bonds

  • are formed by the strong attractive forces between positive and negative ions