Why is Mercury the only metal present in the liquid state at room temperature?
Asked by: Rajiv Ghanta
Because it has a lower melting point than other metals (-39 deg C).
Answered by: Thomas Beach, student
'There must be no barriers for freedom of inquiry. There is no place for dogma in science. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any errors.'