# How does atomic radius change from left to right across a period in the periodic table?

There are many trends observed in the organization of the periodic table. In particular, atomic radius changes from left to right across a period in the periodic table in a specific way. The atomic radius generally gets smaller across each period, or row, of the table, though it increases as you go down the groups, or columns. Though the radius decreases as you go from left to right in one row, once you get to the next row, the radius will increase significantly. The reason for the decrease across periods is that as the atomic number increases, the nucleus has more of a charge, which pulls the electrons with more force, leading to a tighter and smaller atom.
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Ask.com Answer for: how does atomic radius change from left to right across a period in the periodic table
The Periodic Table of Elements
Dmitri Mendeleev generally is credited with the creation of the first periodic table, which charts the chemical elements by atomic number and valence shell electron configuration.
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Q&A Related to "How does atomic radius change from left to right..."
 Atomic radius _ moving from left to right across a period. decreases. http://wiki.answers.com/Q/How_does_atomic_radius_c...
 Going across the periodic, http://www.chacha.com/question/how-does-atomic-rad...
 it decreases because there are more electrons and the electrons in proportion with the protons have a tighter attraction, thus decreasing the size. Source(s) great teacher last year http://answers.yahoo.com/question/index?qid=200904...
 As you move across the periodic http://www.chacha.com/question/what-is-the-reason-...
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