Question

ame three elements for which mendeleev left gap in his periodic table.

Answer 1

It was later identified as gallium. Gallium, germanium, and scandium were all unknown in 1871, but Mendeleev left spaces for each and predicted their atomic masses and other chemical properties. Within 15 years, the “missing” elements were discovered, conforming to the basic characteristics Mendeleev had recorded.

Answer 2

HELLO MATE!!!

EKA-BORON==>SCANDIUM
EKA-ALUMINUM==>GALLIUM
EKA-SILICON==>GERMANIUM

#KEVIN

HOPE IT HELPS YOU ^_^