No. Astatine is a halogen. The alkaline earth metals are in the column second from the left of the Periodic Table.
Astatine is a heavy halogen; no similarities with strontium (alkaline earth metal).
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).
Astatine is a nonmetal and halogen.
alkaline metal property
No, calcium is an alkaline earth metal. The halogens are in the second column from the right on the periodic table.
It is an alkaline earth metal.
No, chromium is not an alkaline metal.
Astatine (At)
No, the guy before me was wrong, Astatine is a Metalloid and it is used in the Radiotherapy of cancer.
No, argon is not an alkaline metal. It is a noble gas.
It is not a alkaline metal.It is a alkaline earth metal.
No, aluminum is not an alkaline earth metal. Aluminum is a post-transition metal, not an alkaline earth metal. Alkaline earth metals include elements like calcium, magnesium, and barium.