2007-01-02 12:45:37 · 4 answers · asked by Joey S 2 in Science & Mathematics ➔ Chemistry
An atomic radius is the radius (distance from the center to the "outer edge," usually measured in picometers. There are actually several. The covalent radius is of an atom like carbon when carbon is actually covalently bonded to another atom. Also, the covalent radius of carbon differs according to whether it;'s in a single, double, or triple bond. The ionic radius pertains if the atom is an ion in an ionic compound. The metallic radius pertains when a metal atom is packed in a bunch of metal balls with other atoms. Some people will say that there is no way to know where an atom begins and ends, because the electrons exist in indefinite clouds around the atoms. The atoms themselves know, however, and it is possible to measure just how far apart they keep one another under all circumstances.
2007-01-02 12:55:08 · answer #1 · answered by steve_geo1 7 · 1⤊ 1⤋
To add: atomic radii increase decrease from left to right on the periodic table (because there are more protons pulling on them) and increase from top to bottom (because there are more shells).
2007-01-02 22:00:09 · answer #2 · answered by Anonymous · 1⤊ 0⤋
answered at website under Source(s) below...
2007-01-02 21:07:14 · answer #3 · answered by Piguy 4 · 0⤊ 0⤋
its an area where the place is affected by radiation
2007-01-02 20:48:20 · answer #4 · answered by young lions 2 · 0⤊ 4⤋