According to Lange, Semi-metals are: boron, silicon, germanium, arsenic, antimony, tellurium, polonium and astatine. Although, polonium and astatine, according to some authors, are not semi-metals. Gallium is a metal (4. period, 13th (IIIa) group).
Barium is a metal. It belongs to group 2 or alkaline earth metal
Barium is a metal. It belongs to group 2 or alkali metals
Metalloid. It touches the metalloid "staircase" on the periodic table. Yes, Boron is a metalloid, intermediate between metals and non-metals. It exists in many polymorphs (different crystal lattice structures), some more metallic than others. Metallic boron is extremely hard and has a very high melting point.
Silicon is a metalloid.
Barium is not a metal; it is an alkaline earth metal found in Group 2 of the periodic table.
Barium is a metal. It belongs to group 2 or alkaline earth metal
Barium is a metal. It belongs to group 2 or alkali metals
It is a metalloid. It is in the p block.
Metalloid. It touches the metalloid "staircase" on the periodic table. Yes, Boron is a metalloid, intermediate between metals and non-metals. It exists in many polymorphs (different crystal lattice structures), some more metallic than others. Metallic boron is extremely hard and has a very high melting point.
metalloid
metalloid
metalloid
metalloid
it is a metalloid because it is a metal and non-metal at the same time
Uranium is a metal, rather than a nonmetal, or metalloid.
a metalloid
Silicon is a metalloid.