metals nonmetals and metalloids l.
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Metals, Nonmetals and Metalloids. Metals. Location: 2/3 of all elements, l eft of the ladder, most active lower left (Fr) Lose/gain: lose electrons to form positive ions (cations)

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  • Location: 2/3 of all elements, left of the ladder, most active lower left (Fr)
  • Lose/gain: lose electrons to form positive ions (cations)
  • Ionization energy (I.E. energy absorbed when electrons are lost from a neutral atom in the gaseous phase-table S)Low
  • Electronegativity (E.N. tendency for an atom to attract electrons to itself when it chemically combines with other elements-table S)Low
  • Electron Affinity (E.A. energy gained when electrons are gained by a neutral atom in the gaseous phase)Low
  • Other Properties: Luster, Malleability, Ductility, High thermal and electrical conductivity.
  • Physical State and examples: Solids except mercury (liquid) at room temperature.
  • Location: 1/3 of elements, right of ladder, most active upper right (F)
  • Lose/gain: gain electrons to form negative ions (anions)
  • I.E. : high
  • E.N. : high
  • E.A. : high
  • Other properties: Dull, brittle, not ductile, not malleable, poor thermal and electrical conductors
  • Physical state and examples: Gases (oxygen, nitrogen), molecular solids or network solids at room temperature (carbon ) or a liquid (only bromine)
metalloids semi metals
Metalloids (semi-metals)
  • Location: along the ladder, 7 of them (B, Si, Ge, As, Sb, Te, and At) (note: Al and Po are metals)
  • Lose/gain: lose, gain or share electrons depending upon what it bonds to. Can form either positive or negative ions.
  • I.E.: medium
  • E.N.: medium
  • E.A.: medium
  • Other Properties: Have some properties of metals and others of nonmetals. Generally intermediate in luster and conductivity.
  • Physical state and examples: most are solids (B, Sb,Te etc.)