Richard Feynman is considered the “Father of Nanotechnology” due to his visionary 1959 lecture titled “There’s Plenty of Room at the Bottom.” In this talk, he outlined the potential of manipulating matter at the atomic and molecular levels. Key contributions include:
• Envisioning nanoscale machines and molecular assemblers.
• Proposing the idea of atomic-scale manufacturing.
• Inspiring decades of research in nanotechnology and material science.
This foundational vision has shaped the modern field of nanotechnology.
Europium (Eu) resembles Calcium (Ca) in the following ways:
(A). Both are diamagnetic
(B). Insolubility of their sulphates and carbonates in water
(C). Solubility of these metals in liquid NH3
(D). Insolubility of their dichlorides in strong HCI
Choose the correct answer from the options given below: