Question

The three elements predicted by Mendeleev from the gaps in his periodic table were known as eka-boron, eka-aluminimum and eka-silicon. What names were given to these elements when they were discovered later on?

Answer 1

Answer:

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When Mendeleev proposed his periodic table, he noted gaps in the table and predicted that as-then-unknown elements existed with properties appropriate to fill those gaps. He named them eka-boron, eka-aluminium and eka-silicon, with respective atomic masses of 44, 68, and 72.

Answer 2

Answer:

These names were given by Mendeleev. Later on eka-boron was named as Scandium, eka-alluminium was named as Gallium and eka- silicon was named as germanium.

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