According to Mendeleev's Periodic Table, which elements’ properties matched up remarkably well with eka-silicon?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Germanium.
According to Mendeleev's Periodic Table, the properties of the element germanium matched up remarkably well with eka-silicon.
- Mendeleev predicted the existence of eka-silicon, an element below silicon in his table, based on gaps in his periodic arrangement.
- When germanium was discovered in 1886, its properties, such as atomic mass and density, aligned closely with Mendeleev's predictions for eka-silicon.
- This discovery validated Mendeleev's periodic law.
- Germanium is a metalloid like silicon, further confirming the accuracy of the prediction.
- The match helped solidify the periodic table's structure and predictive power.