Which answer choice correctly names the element that Mendeleev predicted would be discovered and

placed in the aluminum column?

O sodium (Na)

O gallium (Ga)

helium (He)

carbon (C)

gallium (Ga)

Explanation:

Initially called ekaluminum, of less atomic mass than rare earth elements; the ekaluminum, today knows that gallium (Ga); it was one of the 4 elements that Mendeleev predicted, and this Mendeleev leaves a space on the table to be placed in the aluminum column.