According to Mendeleev’s Periodic Table, which elements' properties matched up remarkably well with eka-silicon?
Germanium
Option 4 is correct. Mendeleev predicted the existence of eka-silicon, which was later identified as Germanium due to its similar properties.
The II group elements in the periodic table is known as
The correct order of decreasing electron gain enthalpy with negative sign for chalcogens is - Identify
Modern periodic table has:
‘Triclosan’, considered harmful when exposed to high levels for a long time, is most likely present in which of the following?