The ionic radii of metallic elements is smaller than its atomic radii, because the ion has less electrons. This gives it a smaller electron cloud and makes the atom smaller.
metallic and nonmetallic elements
You haven't stated any bonds, you have just given a list of elements. Those elements can form various compounds, some having ionic bonds and some having covalent bonds. Uranium can also form metallic bonds.
All of the metallic elements will form an ionic bond with fluorine.
No, gold and platinum are not ionic solids. They are metallic elements that form metallic bonds with delocalized electrons. Ionic solids are formed by the electrostatic attraction between positively and negatively charged ions.
the positive ionic radius is smaller than the neutral atomic radius
Tungsten is an atomic element, meaning it consists of individual tungsten atoms. Tungsten forms metallic bonds, rather than ionic or molecular bonds, due to its electron configuration.
Brass is a metallic compound (having a metallic bond). The two elements that make it up are both metals; Copper and Zinc.
Sodium and magnesium are both ionic elements. Sodium forms a +1 cation, and magnesium forms a +2 cation when they lose electrons, resulting in the formation of ionic compounds when they react with non-metallic elements.
I think that the ionic radii decrease
The positive ionic radius is smaller than the neutral atomic radius
Yes. There are other measures for ions (ionic radius) and free atoms(atomic radius) and covalent radius. Metallic, ionic and covalent are based on measurements of distances in crystals or covelnt bond lengths, atomic radius is based more on calcuation than observation.
they have a great tendency to lose electrons