deveshtewariri8607 deveshtewariri8607
  • 25-09-2017
  • Chemistry
contestada

Give the symbol of the element that has the largest atomic size in group 3a (13).

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W0lf93
W0lf93 W0lf93
  • 05-10-2017
This family of elements is headed by boron. In this case, atomic size increases as one goes down the periodic table, as there are more electrons in each successive element needed to fill the outer shells. As such, thallium, at the lowest level of the group 3a column, will have the largest atomic size.
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