Determine the mass of one drop of mercury by measuring the mass of 5 mL of mercury. Calculate the number of mercury molecules in one drop of mercury; m5 mL of Hg = 67.67 g. Assume 1 drop = 0.05 mL.

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

How might this scientific phenomena be explained? a paper clip floats on water.

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.