Which element was predicted by Dmitri Mendeleev as Eka-Silicon?
Show answer & explanation
Correct answer: A
Explanation
Correct Answer:
Option 1: Germanium
Explanation:
Dmitri Mendeleev predicted the existence of certain elements while creating the periodic table and left gaps for them. The element he called ‘eka-silicon’ was later discovered as germanium. His predictions about its properties were highly accurate, validating his periodic table.
Additional Facts:
Option 2: Gallium was called eka-aluminium.
Option 3: Aluminium was already known.
Option 4: Silicon was already known.
Probable Exam Questions:
Q: Mendeleev’s table was based on what?
A: Atomic mass
Q: Modern periodic table is based on what?
A: Atomic number
Q: Eka-aluminium refers to which element?
A: Gallium
Q: Who gave modern periodic law?
A: Moseley