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How many valence electrons are in aluminum?

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• How many valence electrons are in aluminum?

• How many valence electrons are in aluminum?

  mepehuxit > 05-08-2018, 06:16 AM

  Number of electrons present in the valence shell of an atom or number of protons present in the nucleus of an atom is known as atomic number of an element.
  Aluminium is placed in 3rd A group of the periodic table. Thus group number indicates number of electrons present in the valence shell.
  Secondly,atomic number of aluminium is 13,hence it’s electronic configuration can be written as ,2,8,3.
  Aluminium is metal qhich shows +3 oxidation state in it’s compounds.
  
  There is a trick, using the periodic table of elements, to figuring out how many valence electrons each atom has. The number of valence electrons = the column number (group number). Carbon is in group four, so it has four valence elections, for example. Only works for Groups 1 - 8 of the Main groups.

• RE: How many valence electrons are in aluminum?

  ircasodle > 05-08-2018, 06:16 AM

  It depends on how much aluminium you have. (And yes that is the official name, can’t help it.)
  In 23 grams of Al you’d have about 1.8 x 10^24 of them. That being 3 times the number of Avogadro.
  And they would all be in energy states that span the chunk of Al you have. In an incompletely filled band. That would make for pretty strong metallic bonding, which makes that chunk strong enough to make a soda can out of. It would also make for a pretty good conductor of both heat and electricity.
  Unfortunately, all those electrons could easily be stolen by the oxygen molecules of the air and an oxide could be formed. But luckily this only happens to the very top layer of your can: there is a very thin oxide layer that blocks any further oxidation. Without that your soda can would burst out in flames

• RE: How many valence electrons are in aluminum?

  ohapuqa > 10-12-2018, 06:40 AM

  The electron configuration for Aluminum is
  1s22s22p63s23p1
  The first 10 electrons are in the filled first and second shells.
  This leaves only three electrons in the third shell 3s23p1
  13−10=3
  so there are only 3 valance electrons

• RE: How many valence electrons are in aluminum?

  aadaasdark8072 > 10-12-2018, 06:41 AM

  Aluminium has 3 valence electrons. Valence electrons are located in the outermost shell of an element. On the periodic table, the group number of an element identifies the number of valence electrons by the ones' place of the group number (except for the elements in groups 3–12). Using the periodic table, we can identify that Aluminum (Al) has an atomic number of 13 and is in group number 13, giving the number of valence electrons in Aluminum as 3.
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