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.
All of them, metals are metallic, specifically contain metallic bonds.
The atomic radius decreases as you go from left to right. or atomic radius cation radius && anion radius -barbie=]
The metals outnumber the non-metals by a good margin.
"Metallic" is not a metal. But elements that are metals, are metallic.
Metallic bonds are bonds between only metals, such as a bond between Copper and Zinc. Metals are found in the metal and left side of the periodic table.
Alkali metals contribute only one valence electron
No, metalloids have properties of metals and nonmetals.
Alkali metals contribute only one valence electron
Native metals are minerals. The only metals that commonly occur in native form are copper, silver, gold, and platinum.
helium and carbon are non metals. Gold is a metal
Alkali metals get softer down Group 1 due to an increase in atomic size and weaker metallic bonding. As you move down the group, the atomic radius increases, leading to a decrease in the strength of metallic bonding and making the metals softer.
For "only metals" the answer is alloys or intermetallic compounds, formed of course from atom of metals - the bonds are of metallic type.All other chemical compounds contain atoms of chemical elements, metals or nonmetals.