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The first periodic trend we will consider atomic radius. The atomic radius is an indication of the size of an atom. Although the concept of a definite radius of an atom is a bit fuzzy, atoms behave as if they have a certain radius. Such radii can be estimated from various experimental techniques, such as the x-ray crystallography of crystals.
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Nitrogen has an electron configuration of 1s 2 2s 2 2p 3, which puts one electron in each p orbital, making it a half-filled set of orbitals: Half-filled sets of p orbitals are slightly more stable than those with 2 or 4 electrons, which makes it slightly harder to ionize a nitrogen atom. Circle the atom in each pair that has a larger atomic radius. 4 oor© 6 Circle the ion in each pair has the smaller ionic radius. (Note _ charge each will have before you can answer these.) You have to decide which 13. Fe+o e 18 cu 22 10. I .60rcs Circle the atom in each pair the larger ionization energy. or 16 BeorBa Circle the atom in each ... Write the symbol of each element described below. (a) largest atomic radius in Group 1 (b) smallest atomic radius in period 3 (c) largest first ionization energy in Group 2 (d) most electronegative in Group 16 (e) element(s) in period 2 with no unpaired p electron (f) abbreviated electron configuration is [Ar] 4s 2 3d 3 (g) A +2 ion with abbreviated electron configuration [Ar]3d 5 (h) A ...
Table 6.7. Atomic and Ionic Radii of Some Elements The radius of anion is larger than that of parent atom. Anion is formed by the gain of one or more electrons by the gaseous atom. In the anion, the nuclear charge is the same as that in the parent atom but the number of electrons has increased.
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